Design of Logic Circuit Technology for IBM System/370 Models 145 and 155. - Philip E. Fox; W. J. Nestork (IBM J. Res. Dev., 1971)

The autoscritcher and the superscritcher: aids to cryptanalysis of the German Enigma cipher machine, 1944-6. - David J. Crawford; Philip E. Fox (IEEE Ann. Hist. Comput., 1992)