TY - BOOK ID - 138054094 TI - The Cipher of Roger Bacon AU - Newbold, William Romaine, AU - Kent, Roland Grubb, PY - 2017 SN - 1512818232 PB - Philadelphia : University of Pennsylvania Press, DB - UniCat KW - Ciphers. UR - https://www.unicat.be/uniCat?func=search&query=sysid:138054094 AB - The story of the discovery of the key of Bacon's system of ciphers and its application to the Voynich manuscript and other untranslated documents. ER -