This page includes:
Following are the three main sources for archive material related to the Voynich MS. More detailed information about their holdings, and a list of additional archives, is provided on a dedicated page (1).
The first and foremost resource is that of the Beinecke Rare Book and Manuscript Library of Yale University:
See also the >>general web page of the library linking to all information related to early books and manuscripts (pre 1600) at the Beinecke Library. Furthermore, all manuscript descriptions from Shailor (1984) - possibly extended by more recent entries - are accessed >>via this page (click on link "List All Pre-1600 Manuscript Records").
Yale University Press has issued >>a very affordable photo facsimile with accompaying essays about the MS, in October 2016.
Yale also provides a >>summary overiew of the book, and there is a >>blog entry including a short video explaining the complicated production process.
In addition, an expensive, hand-made replica of the Voynich MS is being produced and sold by the spanish company Siloé, who are experts in the reproduction of old manuscripts. 898 numbered copies have been produced.
Before the availability of the digital scans, the library provided printout copies of an early B/W microfilm made of the MS to interested researchers (the so-called "copyflo").
When Hans P. Kraus decided to donate the Voynich MS to the Beinecke Library of Yale University, he also had a large amount of material that had been left behind, in turn, by Wilfrid Voynich, Ethel Voynich and Anne Nill. He gave everything that seemed to be related to the Voynich MS to the Beinecke library, as indicated already above. The remaining, extensive material (related to the antiquarian book business and to ELV's literary work) was given to the Grolier Club of bibliophiles in New York, of which he was a member.
As a result of this, the >>Grolier Club library hosts a complete set of Voynich's sales catalogues, and additional material (letters etc.) which is >>summarised here.
More detailed information about the Grolier Club's holdings related to the Voynich MS may be found here.
The home page of the Marshall Library may be found >>here. Its main interest for the study of the Voynich MS is the collection of >>William F. Friedman papers which includes a significant amount of material related to the MS from both William and Elizebeth Friedman. This includes transcriptions of the MS by the Voynich MS study groups and correspondence. It also includes the Petersen hand transcription of the MS.
More detailed information about the Marshall Library's holdings related to the Voynich MS may be found here.
It is not possible to present a complete or even a representative list of internet resources about the Voynich MS. The following is an overview of sources I am aware of, that are either important, or interesting for one reason or another. I welcome information about missing or broken links (2).
The links are provided in order to present the wide variety of opinions about the Voynich MS. The inclusion of any link does not imply that I endorse its contents. To the contrary:
See also the general disclaimer for this site.
The list of active internet discussion fora dedicated to the Voyinch MS is changing continuously. It is almost impossible to provide a useful overview. Several of them are personal BLOG's that allow anyone to add comments. Their quality can assume a very wide range from very good to disastrous, and, apart from some special cases, I will refrain from assigning a quality label.
The two fora that are not personal blogs are the following:
There are Wikipedia entries about the Voynich MS in many different languages, confirming the interest that the MS enjoys worldwide. Following are links to the two main Wikipedia entries, in English and in German. One may reach the versions in other languages through either of these.
>>The Voynich MS entry in the general English Wikipedia.
>>The Voynich MS
entry in the general German Wikipedia.
Some dedicated wiki's and wiki books have been started, but most if not all of these seem to have been abandoned.
There are innumerable web sites that copy or reformulate information about the Voynich MS available elsewhere. I don't consider it possible (and it hardly seems interesting) to list all of them here. All of the web sites and blogs listed below include some original information.
The tentative identification of herbs in the Voynich MS has always been a topic of special interest, which is witnessed by the number of dedicated sites:
Earlier solutions have appeared in print and are presented in cronological order: Newbold (1928); Feely (1943); Strong (1945); Brumbaugh (1974), (1975), (1976); Child (1976), (2007); Stojko (1978); Levitov (1987).
Modern proposed solutions, available on-line, are presented in no particular order. I need to stress that there are many, many more proposed solutions, but most of these are not available at internet sites. The selection below is therefore not representative.
The following bibliography includes both general works about the Voynich MS and related material, and publications cited anywhere at this web site. The very specialised references related to the history of the MS between 1665 and 1912, and the Society of Jesus in Rome, are collected here. Items in the bibliography that are not (yet) referred to at this site are marked with a † symbol (5).
Note about sorting order: prefixes like 'De' (etc) are considered part of the name, and are sorted under 'D' (etc).
Acedo, Luis.: A Hidden Markov Model for the Linguistic Analysis of the Voynich Manuscript, Mathematical and Computational Applications (2019), 24(1). >>available online.
Aiton, Eric J.: Ioannes Marcus Marci (1595-1667), in: Annals of Science. London XXVI (1970), 153-164.
Allen, R. H.: Star Names: Their Lore & Meaning, 1899. Dover Books reprint, 1963. †
Amancio DR, Altmann EG, Rybski D, Oliveira ON Jr, Costa LdF: Probing the Statistical Properties of Unknown Texts: Application to the Voynich Manuscript. PLoS ONE 8(7), 2013. >>Available on-line. †
Anon: Prag um 1600, Kunst und Kultur am Hofe Rudolfs II, Kulturstiftung Ruhr Essen, Luca Verlag Freren 1988.
Arber, A.: Herbals, their origin and evolution. A chapter in the history of botany, 1470-1670, Cambridge University Press, 1912.
Art Institute of Chicago: Bulletin of the Art Institute of Chicago (1907-1951), Vol. 9, No.7 (Nov.1, 1915), pp. 97-100
Austin, G. (ed.): The Grolier Club: Iter Italicum, New York: The Grolier Club, 1963.
Backhouse, Janet: The Spanish Forger, The British Museum Quarterly, XXXIII, 1-2, 1968, pp. 65-71.
Barabe, J.: Materials Analysis of the Voynich Manuscript. Report from McCrone Associates, Inc. to the Beinecke Rare Book and MS Library, 1 April 2009. >>Available on-line.
Barlow, M.: The Voynich Manuscript --- by Voynich?, Cryptologia Vol.10, Nr. 4, October 1986, pp. 210-216.
Barthélemy, Pierre: Le codex Voynich: le manuscrit le plus myst rieux du monde Paris, J.-C. Gawsewitch diteur, 2005, ISBN 2-35013-022-3. †
Bauer, Craig: Unsolved!: The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies. 1976. Princeton University Press, 2017.
Bauer, R. and H. Haupt: Das Kunstkammerinventar Kaiser Rudolfs II. 1607-1611. Jahrbuch der kunsthistorischen Sammlungen in Wien, Vol. 72, 1976.
Bennett, William Ralph: Scientific and Engineering Problem Solving with the Computer. Englewood Cliffs: Prentice-Hall, 1976.
Bílek, Tomáš Václav: Dějiny konfiskací v Čechách po r. 1618 (history of confiscations in Bohemia after 1618) - Prague 1882.
Blevins, Pamela: , Ethel Voynich 'E.L.V.', Revolutionary, Novelist, Translator, Composer, >>available on-line
Blume, Dieter, Mechthild Haffner, Wolfgang Metzger:
Sternbilder des Mittelalters, Der gemalte Himmel zwischen Wissenschaft und Phantasie.
Band I: 800-1200. De Gruyter, 2012
Band II: Sternbilder des Mittelalters und der Renaissance (1200-1500), unter Mitarbeit von Katharina Glanz.
De Gruyter, August 2016.
Blunt, Wilfrid, and Sandra Raphael: The illustrated herbal, London, 1979
Böhm, Ludvík B.: Královské věnné město Mělník a okres Mělnický, Mělník, 1892.
Boeren, P.C.: Codices Vossiani Chymici décrits par P.C.Boeren. Universitaire Pers Leiden, 1975.
Bolton, Henry Carrington: The follies of science at the court of Rudolf II, 1576-1612; Milwaukee, Pharmaceutical Review Publishing Co, 1904.
Bowern, Claire and Daniel Gaskell: Enciphered after all? Word-level Text Metrics are Compatible with some Types of Encipherment. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Boxer, Alexander: Fingerprinting Gibberish: A Quantitative Comparison of the Voynich and Sloane MS 3188. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Brewer, Keagan: 'I beg your grace to suppress this chapter or else to have it written in secret letters': The Emotions of Encipherment in Late-Medieval Gynaecology. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Browne, Sir Thomas: Cited in Calder (1952)
Brumbaugh, Robert S.: Botany and the Voynich `Roger Bacon' Manuscript Once More, Speculum 49, 1974, pp.546-48.
Brumbaugh, Robert S.: The Voynich `Roger Bacon' Cipher Manuscript: Deciphered Maps of Stars, Journal of the Warburg and Courtauld Institutes 39, 1976, pp.139-50.
Brumbaugh, Robert S. (ed.):
The World's Most Mysterious Manuscript - The Voynich "Roger Bacon" Cipher Manuscript, Carbondale:
Southern Illinois University Press, 1978.
R. Brumbaugh: Introduction
J. Manly: The Most Mysterious Manuscript
R.G. Kent: The Voynich Cipher Manuscript of Roger Bacon, Sketch of its History
R. Brumbaugh: Notes on Secrets in writing
W. Newbold: Newbold's Decipherments
E. Gilson and R. Carton: Reviews of the Scholarship
J. Manly: The Voynich Manuscript attributed to Roger Bacon
H. O'Neill: Botanical Observations on the Voynich MS
D. Kahn: A review of the Problem
R. Brumbaugh: Botany and the Voynich "Roger Bacon" Manuscript once more
C. Zimanski: William F. Friedman and the Voynich Manuscript
R. Brumbaugh: Science in Cipher
Calder, I.R.F.:
John Dee Studied as an English Neo-Platonist, Warburg Institute, London, 1952. (PhD Thesis).
>> available on-line.
†
Callmer, Ch.: K nigin Christina, ihre Bibliothekare und ihre Handschriften, Acta bibliothecae regiae Stockhomiensis 30, Stockholm, 1977.
Cappelli, A.: dizionario di abbreviature Latini ed Italiani, Milano, 1912. 529 pp., ill.
Carter, Albert Howard: Some Impressions of the Voynich Manuscript. Letter preserved in Marshall Library, Item 1614, 10/09/1946.
Caruana, Andrew, Colin Layfield and John Abela: An Analysis of the Relationship between Words within the Voynich Manuscript. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Cave, Robert and Lee Neuwirth: Hidden Markov models for English, in: J. D. Ferguson (ed), Hidden Markov Models for Speech, IDA-CRD, Princeton, NJ, October 1980. >>available online.
Child, James R.: A linguistic approach to the Voynich text, in D'Imperio (1976).
Clarke, Mark: Colours versus colorants in art history: evaluating lost manuscript yellows. Revista de história da arte, série W No.I - 2011, pp.138-151.
Clemens, Raymond (ed), with introduction by Deborah Harkness:
The Voynich Manuscript, Yale University Press, New Haven and London, 2016.
D. Harkness: Introduction
R. Clemens: Preface
R. Zandbergen: Earliest Owners
A. Hunt: Voynich the Buyer
P. Zyats, E. Mysak, J. Stenger, M.-F. Lemay, A. Bezur, D. Driscoll: Physical Findings
W. Sherman: Cryptographic Attempts
J.M. Rampling: Alchemical Traditions
R. Clemens: The World's Most Mysterious Manuscript
Collins, Minta: Medieval herbals: the illustrative traditions , British Library Studies in Medieval Culture, 2000.
D'Imperio, Mary E.(ed.):
New Research on the Voynich Manuscript: Proceedings of a seminar, 30 November 1976.
Privately printed pamphlet, Washington D.C., 1976.
James Child: A linguistic Approach to the Voynich Text
Prescott Currier: Some Important New Statistical Findings.
Sydney Fairbanks: Suggestions Toward a Decipherment of the "Key".
M. E. D'Imperio: The Solution Claim of Dr. Robert S. Brumbaugh
Prescott Currier: Further Details of New Statistical Findings.
Prescott Currier: The Voynich Manuscript, Some Notes and Observations.
Stuart H. Buck: What Constitutes Proof?
It can be
>> downloaded from the NSA (2.7 MB pdf)
D'Imperio, Mary E. :
The Voynich Manuscript - an elegant enigma. Aegean Park Press, 1978.
It can be
>> downloaded from the NSA (31.2 MB pdf)
D'Imperio, Mary E. : An Application of Cluster Analysis and Multiple Scaling to the Question of "Hands" and "Languages" in the Voynich Manuscript, National Security Agency Technical Journal. 23, 3 (Summer 1978), pp. 59-75. >>available online at NSA
D'Imperio, Mary E. : An Application of PTAH to the Voynich Manuscript, undated. >>available online at NSA
Dannenfeld, Karl K. Leonard Rauwolf, sixteenth-century physician, botanist, and traveller. Harvard University Press, Cambridge (Mass.) 1968.
De Backer, Augustain and Alois: Bibliothèque des écrivains de la Compagnie de Jésus, 7 vol., Li ge, 1853-1861.
De Ricci, Seymour, with the assistance of W. J. Wilson: Census of medieval and Renaissance Manuscripts in the United States and Canada, 1937.
Drugulin, W.E.: Allgemeiner Portrait-Katalog, Leipzig, 1860
Evans, R.J.W.: Rudolf II and his world, a study in intellectual history 1576-1612. Oxford University Press, 1973
Evans, R.J.W.: The making of the Habsburg Monarchy 1550-1700: an interpretation. Clarendon Press, Oxford, 1979.
Fagin Davis, Lisa: Why do people keep convincing themselves they ve solved this medieval mystery?, Washington Post, 14 August 2019.
Fagin Davis, Lisa: interview by Koen Gheuens, published 3 April 2020.
Fagin Davis, Lisa: How Many Glyphs and How Many Scribes? Digital Paleography and the Voynich Manuscript, Manuscript Studies: A Journal of the Schoenberg Institute for Manuscript Studies, University of Pennsylvania Press, Volume 5, Number 1, Spring 2020, pp. 164-180.
Fagin Davis, Lisa: Voynich Paleography, Keynote paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation.
Farrugia, Kevin, Colin Layfield and Lonneke van der Plas: Demystifying the Scribes behind the Voynich Manuscript using Computational Linguistic Techniques. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Feaster, Patrick: Rightward and Downward Grapheme Distributions in the Voynich Manuscript. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Feely, Joseph M.: Roger Bacon's Cipher: The Right Key Found, Rochester, 1943
Fell-Smith, Charlotte:
John Dee (1527-1608), London, Constable & Company Ltd., 1909
>> available on-line.
†
Fiddyment, Sarah, Bruce Holsinger, Chiara Ruzzi and Alexander Devine: Animal origin of 13th-century uterine vellum revealed using noninvasive peptide fingerprinting. Proceedings of National Academy of Science 112: 49 (2015), 15066-71.
Findlen, Paula (ed.): Athanasius Kircher: The Last Man who Knew Everything, Routledge, 2004.
Fletcher, John E.: A brief survey of the unpublished correspondence of Athanasius Kircher S J. (1602-80), in: Manuscripta, XIII, St. Louis, 1969, pp. 150-60.
Fletcher, John E.: Johann Marcus Marci writes to Athanasius Kircher. Janus, Leyden, LIX (1972), pp. 97-118
Fletcher, John E. (ed.): Athanasius Kircher und seine Beziehungen zum gelehrten Europa seiner Zeit Wolfenbütteler Arbeiten zur Barockforschung, Band 17, 1988.
Friedman, Elizebeth: The Most Mysterious Manuscript still Mysterious Washington Post, August 5, Section E, pp. 1,5, 1962.
Gabrovsky, Alexander N.: Galenic Humoral Theory and Amenorrhea: Cushingoid Phenotype in a fifteenth-century Illustrated Cipher Manuscript. Notes in the History of Art. Spring 2018 (0737-4453/2018/3703-0002), pp. 136-149. †
Garber, M.: Optics and alchemy in the philosophical writings of Marcus Marci in post-Rudolphine Prague 1612-1670, dissertation submitted for the degree Doctor of Philosophy, San Diego, 2002.
Gaskell, Daniel and Claire Bowern: Gibberish after all? Voynichese is Statistically Similar to Human-Produced Samples of Meaningless Text. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Gessman, Gustav W.: Die Geheimsymbole der Alchymie, Arzneikunde und Astrologie des Mittelalters, Berlin, Verlag von Karl Siegismund, 1922.
Gheuens, Koen and Cary Rapaport: Above and Beyond Voynich Canopies: Tents as a Recurring Motif in Beinecke MS 408. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Gilly, Carlos: "Theophrastia Sancta", Der Paracelsismus als Religion im Streit mit den offiziellen Kirchen. In: Joachim Telle (ed.): Analecta Paracelsica, Studien zum Nachleben Theophrast von Hohenheims im deutschen Kulturgebiet der frühen Neuzeit. Franz Steiner Verlag Stuttgart, 1994, pp. 425-488.
Godwin, Joscelyn: Athanasius Kircher: A Renaissance Man and the Quest for Lost Knowledge. London, Thames and Hudson, 1979
Gröbl, Lydia and Herbert Haupt (eds): Kaiser Rudolf II. Kunst, Kultur und Wissenschaft im Spiegel der Hoffinanz. Teil I: Die Jahre 1576 bis 1595, in: Jahrbuch des Kunsthistorischen Museums Wien 8/9 (2006/2007), 205-353.
Grossman, L.: When words fail. The struggle to decipher the world's most difficult book, Lingua Franca, April 1999. >>available online. †
Guy, Jacques: Vowel Identification: an Old (but Good) Algorithm, Cryptologia, Vol.XV, Nr.3, July 1991, pp.258-262. Available >>online here.
Guy, Jacques: The Distribution of Letters c and o in the Voynich Manuscript: Evidence for a Real Language?, Cryptologia, Vol.21, Issue 1, 1997, pp.51-54.
Guzy, Stefan: Book transactions of Emperor Rudolf II 1576-1612. New findings on the earliest ownership of the Voynich manuscript. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation.
Haakman, A.: De onderaardse wereld van Athanasius Kircher, Meulenhoff, 1991.
Hauer, Bradley and Grzegorz Kondrak: Decoding Anagrammed Texts Written in an Unknown Language and Script, Transactions of the Association for Computational Linguistics, vol. 4, pp. 75 86, 2016.
Haupt, Herbert (ed): Kaiser Rudolf II. Kunst, Kultur und Wissenschaft im Spiegel der Hoffinanz. Teil II: Die Jahre 1596 bis 1612, in: Jahrbuch des Kunsthistorischen Museums Wien 10 (2008), 229-399.
Hermes, Jürgen: Textprozessierung - Design und Applikation, Dissertation, Universität zu Köln, 2012. †
Hermes, Jürgen: Polygraphia III: The Cipher that Pretends to be an Artificial Language. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Horčický de Tepenec, Jakub: Konfessy katholická. Totiž : Wyznánj prawé Wjry [etc], 1609. Reprinted in 1782.
Hübner, Wolfgang: Die Eigenschaften der Tierkreiszeichen in der Antike: ihre Darstellung und Verwendung unter besonderer Berücksichtigung des Manilius, 1975.
Hunt, Arnold: Foreign Dealers in the English Trade in: Giles Mandelbrote, ed. Out of Print & Into Profit: A History of the Rare and Second hand Book Trade in Britain in the Twentieth Century. New Castle, DE: Oak Knoll Press; London: The British Library, 2006, pp. 245-267.
Hunt, Arnold: Voynich, The Buyer in: Clemens (2016), pp. 11-21.
Janick, Jules and Arthur O. Tucker: Were Juan Gerson the illustrator and Gaspar de Torres the author of the Voynich Codex? Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 45(2), 2017, pp. 343-352.
Janick, Jules and Arthur O. Tucker: Unraveling the Voynich Codex. Fascinating Life Sciences, Springer, Cham Switzerland, 2018.
Jantsch, Michael: Domus pietatis et literarum lapide fundamentali, 1680.
Jireček, Josef: Rukověť k dějinám literatury české do konce XVIII. věku (Manual of the history of Czech literature until the end of the 18th C - Prague 1875), pp.235-236.
Johnson, Reed: The unread: the mystery of the Voynich Manuscript. The New Yorker, July 9, 2013. >>Available online.
Kahn, David: The Codebreakers. New York: Macmillan, 1967.
Katz, Farley: From Voynich to the Beinecke, the Trail of Ownership. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation.
Kennedy, Gerry and Rob Churchill: The Voynich manuscript; the mysterious code that has defied interpretation for centuries, 2004, 2006.
Kennedy, Gerry: The Booles & The Hintons, two dynasties that helped shape the modern world, Atrium, 2016.
King, David: The Ciphers of the Monks: A Forgotten Number-notation of the Middle Ages, Stuttgart, 2001.
Kraus, Hans P.: A rare book saga -- The autobiography of H. P. Kraus. New York: Putnam's, 1978.
Krischer, Jeffrey P.: The Voynich Manuscript, Paper presented at the seminar in mathematical linguistics, Harvard, 1969.
Kurz, Otto: Fakes, A Handbook for Collectors and Students, Yale University Press, 1948.
Landini, Gabriel and René Zandbergen: A Well-kept Secret of Mediaeval Science: the Voynich manuscript, in: Aseculapius, the journal of the University of Birmigham Medical and Dental Graduates Society, 1998. †
Landini, Gabriel: Evidence of linguistic structure in the Voynich MS using spectral analysis, in Cryptologia Vol. 25 Issue 4, 2001, pp. 275-295.
Langenmantel, Hieronymus: Fasciculus epistolarum Adm. R. P. Athanasii Kircheri Soc. Jesu (etc), Augustae Vindelicorum, Ao. 1684, 8vo, pp.100.
Layfield, Colin, Lonneke van der Plas, Michael Rosner and John Abela: Word Probability Findings in the Voynich Manuscript, University of Malta, May 2020.
Layfield, Colin and John Abela:
International Conference on the Voynich Manuscript 2020, 30 Nov - 1 Dec 2022,
>>proceedings available online.
Contributions in order of the programme:
Clemens;
Zandbergen;
Boxer;
Gheuens and Rapaport;
Brewer;
Gaskell and Bowern;
Farrugia, Layfield and van der Plas;
Bowern and Gaskell;
Hermes;
Caruana, Layfield and Abela;
Lindemann;
Zattera;
Painter and Bowern;
Feaster;
Stafford;
Katz;
Schmeh and Dunin;
Guzy;
Fagin Davis.
See also the
>>
book of abstracts (PDF),
and the
>>video recordings of the presentations.
Ledrerova, Dagmar: Bibliographie de Joannes Marcus Marci. In: Novy and Folta (1967), pp. 39-50.
Levitov, Leo: Solution of the Voynich Manuscript: A Liturgical Manual for the Endura Rite of the Cathari Heresy, the Cult of Isis. Laguna Hills, California: Aegean Park Press, 1987.
Lindemann, Luke and Claire Bowern: Character Entropy in Modern and Historical Texts: Comparison Metrics for an Undeciphered Manuscript. 27 October 2020.
Lindemann, Luke: Crux of the MATTR: Voynichese Morphological Complexity. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Liva, Václav: Seznamy pražských novomésťanů za léta 1618 1653. Časopis Rodopisné společnosti československé v Praze VII-VIII, 1935-1936.
Manly, John Matthews: The Most Mysterious Manuscript in the World: Did Roger Bacon Write It and Has the Key Been Found? in Harper's Monthly Magazine 143 (1921), pp. 186-97.
Manly, John Matthews: Roger Bacon and the Voynich MS. Speculum 6, July 1931, pp. 345-391.
Marci, Johannes Marcus: Pan en Panton, seu Philosophia Vetus Restituta. Pragae, Typis Academicis, 1662.
Marek, Jiri: Un physicien Tchèque du XVII siècle: J.M. Marci de Kronland (1595-1667), in: Revue d'histoire des sciences, Paris 1968 XXI 109-130.
Meister, Aloys: Die Anfänge der modernen diplomatischen Geheimschrift. Paderborn, 1902. †
Meister, Aloys: Die Geheimschrift im Dienste der päpstlichen Kurie von ihren Anfängen bis zum Ende des 16. Jahrhunderts, Paderborn, 1906. †
Montemurro, Marcelo and Damian Zanette: Keywords and Co-Occurrence Patterns in the Voynich Manuscript: An Information-Theoretic Analysis, PLoS ONE 8(6): e66344. doi:10.1371/journal.pone.0066344 (2013)
Morávek, Jan: Nově objevený inventář Rudolfinských sbírek na hradě Pražskěm. Praha, 1937.
Neugebauer, Otto: A History of Ancient Mathematical Astronomy. 3 vols. Berlin, 1975.
Newbold, William Romaine: The Cipher of Roger Bacon. Edited with foreword and notes by Roland Grubb Kent. Philadelphia: University of Pennsylvania Press, 1928.
Nový, Luboš and Jaroslav Folta (eds.):
Acta historiae rerum naturalium necnon technicarum. Special issue 3, Prague, 1967.
J. Smolka: Joannes Marcus Marci, his life, time and works.
Z. Servit: Joannes Marcus Marci a Kronland (Jan Marek, 1595-1667).
His contributions in the field of medicine [...]..
D. Ledrerova: Bibliographie de Joannes Marcus Marci.
O'Neill, Hugh: Botanical Observations on the Voynich Manuscript. Speculum 19 (1944) p. 126
Orioli, Giuseppe: Adventures of a bookseller, McBride & Co, 1938.
Ottův slovník naučný: 35 Vols., Prague, 1900.
Painter, Katie and Claire Bowern: Examining the history of Voynich Glyphs using Phylogenetic Methods. Paper presented at the 2022 Voynich MS Conference, Malta, 2022. >>available on-line (PDF). See also the >>video recording of the presentation. †
Parpagliolo, Luigi: Codice delle antichità e degli oggetti di arte., Raccolta di leggi, decreti, regolamenti, circolari relativi alla conservazione dei monumenti e degli oggetti di antichità e di arte con richiami alla giurisprudenza e ai precedenti storici e legislativi ..., Roma, E. Loescher & Co. (W. Regenberg), 1913.
Paulus, Julian: Alchemie und Paracelsismus um 1600. Siebzig Portrats. In: Joachim Telle (ed.): Analecta Paracelsica, Studien zum Nachleben Theophrast von Hohenheims im deutschen Kulturgebiet der frühen Neuzeit. Franz Steiner Verlag Stuttgart, 1994, pp. ???-???.
Pelling, Nicholas: The curse of the Voynich; the secret history of the world's most mysterious manuscript, Compelling Press, Surbiton, 2006.
Pelzel, Franz Martin: Abbildungen Böhmischer und Mährischer Gelehrten und Künstler nebst kurzen Nachrichten von ihrem Leben und Wirken, Prague, 1773-1782
Pick, Friedel: Joh. Jessenius de Magna Jessen Arzt und Rektor in Wittenberg und Prag hingerichtet am 21 Juni 1621, ein Lebensbild aus der Zeit des dreissigjährigen Krieges. Leipzig, 1926
Podlaha, Antonín: Tři čeští laikové literární obránci víry katolické ve století XVI. a XVII. (Blažej Nožička z Votina, Jakub Horčický z Tepence, Jan Benedikt Smolík.), Sborník Historického kroužku, sešit 5 (1896), pp. 3-24 (Horčický pp. 10-20).
Poundstone, William: Labyrinths of Reason, Doubleday, New York, 1988. †
Prinke, Rafał and René Zandbergen: Najdziwniejszy dokument średniowieczny. Komputerowe próby rozszyfrowania Rukopisu Wojnicza [in:] Rafał T. Prinke [ed.], Megabajty dziejów. Informatyka w badaniach, popularyzacji i dydaktyce historii, Poznan 2007, p. 45-62. †
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