TY - BOOK ID - 129280755 TI - Clavis Steganographiae Ioannis Trithemij abbatis Spanheimensis [...]. PY - 1621 PB - [Frankfurt] : Venundatur apud Iohannem Bernerum, bibliopolam Francofurtensem, DB - UniCat KW - Ciphers KW - Cryptography KW - Early works to 1800. KW - Early works to 1800. KW - Trithemius, Johannes, UR - https://www.unicat.be/uniCat?func=search&query=sysid:129280755 AB - ER -