Efficient convergence acceleration for a parallel CFD code. - Roy D. Williams; Jochem Häuser; Ralf Winkelmann (Parallel CFD, 1996)

Accelerating system integration by enhancing hardware, firmware, and co-simulation. - Klaus-Dieter Schubert; Edward C. McCain; Hermann Pape; Karin Rebmann; Patrick M. West; Ralf Winkelmann (IBM J. Res. Dev., 2004)

Control Register Specification and Verification in Complex Systems. - Christoph Jäschke; Ralf Winkelmann; Johannes Kösters (MBMV, 2006)

Functional verification of the IBM System z10 processor chipset. - Christopher A. Krygowski; Dean G. Bair; Rebecca M. Gott; M. H. Decker; A. V. Giri; Christian Habermann; Matthias Heizmann; Stefan Letz; William J. Lewis; Steven M. Licker; H. Mallar; Edward C. McCain; et al. (IBM J. Res. Dev., 2009)

Performance innovations in the IBM z14 platform. - Craig R. Walters; David S. Hutton; Edward W. Chencinski; Christine Axnix; Ralf Winkelmann; Michael F. Fee; Anthony Saporito; Christian Jacobi 002 (IBM J. Res. Dev., 2018)