Scrip ta Mathematica, New York, Oct. 1939, Vol. 6, pp. 157-168. aquot;The earliest solution of a multiple alphabet cipher written with the use of a key, by Charles J. Mendelsohn.aquot; The Signal ... aquot;Messages recorded in code explained by typewriter.
|Title||:||Studies in the Humanities|
|Author||:||Northwestern University (Evanston, Ill.)|