S/390 Parallel Enterprise Server CMOS Cryptographic Coprocessor. - Randall J. Easter; Edward W. Chencinski; Edward D'Avignon; Seth R. Greenspan; William A. Merz; Clark D. Norberg (IBM J. Res. Dev., 1999)

Redundant I/O interconnect. - Ulrich Helmich; Michael Becht; Michael J. Becht; Janet R. Easton; Richard K. Errickson; Tobias Gehrmann; Steven G. Glassen; Seth R. Greenspan; Frank Koeble; Helge Lehmann; Carl Mayer; Jonathan S. Nikfarjam; et al. (IBM J. Res. Dev., 2007)