System control structure of the IBM eServer z900. - Friedemann Baitinger; Herwig Elfering; Gerald Kreissig; Daniel Metz; Juergen Saalmueller; Frank Scholz (IBM J. Res. Dev., 2002)

IBM eServer z990 improvements in firmware simulation. - Michael Stetter; Joachim von Buttlar; Ping T. (Danny) Chan; Dietmar Decker; Herwig Elfering; Paul M. Gioquindo; Thomas Hess; Stefan Koerner; Andreas Kohler; Heinrich Lindner; Karlo Petri; Mooheng Zee (IBM J. Res. Dev., 2004)

IBM System z10 firmware simulation. - Stefan Koerner; Andreas Kohler; J. Babinsky; H. Pape; Felix Eickhoff; S. Kriese; Herwig Elfering (IBM J. Res. Dev., 2009)

Firmware verification and simulation in IBM zEnterprise 196. - Stefan Koerner; Constantin Werner; Thomas Hess; Philip Schulz; Markus Strasser; Sven Wagner; Harald Böhm; Martin Troester; Dirk Bolte; Herwig Elfering; Thomas Pohl; Klaus Theurich; et al. (IBM J. Res. Dev., 2012)