A CMOS implementation of the ESA/390 mainframe architecture. - Nicholas Roethe; Udo Wille (Microprocessing and Microprogramming, 1991)

S/390 Parallel Enterprise Server Generation 3: A balanced system and cache structure. - Gerhard Döttling; Klaus Joerg Getzlaff; Bernd Leppla; Walter Lipponer; Thomas Pflueger; Thomas Schlipf; Dietmar Schmunkamp; Udo Wille (IBM J. Res. Dev., 1997)