Franksen, Ole Immanuel.
Mr. Babbage's secret : the tale of a cypher and APL / Ole Immanuel Franksen ; foreword by H.H. Goldstine. - Englewood Cliffs, N.J. : Prentice Hall, 1985, c1984. - 319 p. : ill. ; 25 cm.
Bibliography: p. 301-319.
0136047297
85060146
Babbage, Charles, 1791-1871.
Cryptographers--Biography.--Great Britain
Ciphers--History.
Cryptography--History.
APL (Computer program language)
Z103.B2 / F72 1985
Mr. Babbage's secret : the tale of a cypher and APL / Ole Immanuel Franksen ; foreword by H.H. Goldstine. - Englewood Cliffs, N.J. : Prentice Hall, 1985, c1984. - 319 p. : ill. ; 25 cm.
Bibliography: p. 301-319.
0136047297
85060146
Babbage, Charles, 1791-1871.
Cryptographers--Biography.--Great Britain
Ciphers--History.
Cryptography--History.
APL (Computer program language)
Z103.B2 / F72 1985