01214nam0 2200277 i 450 SUN005619020180409085157.54204-86200-97-30.00978-04-86200-97-220061116d1956 |0engc50 baengUS|||| |||||*Cryptanalysisa study of ciphers and their solutionformerly published under the title Elementary cryptanalysisHelen Fouche GainesNew YorkDover1956VI, 237 p.ill.21 cm.94A60Cryptography [MSC 2020]MFSUNC019699USNew YorkSUNL000011Fouche Gaines, HelenSUNV044653725824DoverSUNV000279650ITSOL20200713RICAhttp://books.google.it/books?id=fKNB-7y_Hs4C&printsec=frontcover&dq=0486200973&hl=it&ei=XNJLTffxIcX0sgbbxriCCw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCkQ6AEwAA#v=onepage&q&f=falseSUN0056190UFFICIO DI BIBLIOTECA DEL DIPARTIMENTO DI MATEMATICA E FISICA08PREST 94-XX 1532 08 3463 I 20061116 Cryptanalysis1424584UNICAMPANIA