Modular BIST concept for microprocessors. - Hartmut C. Ritter; Thomas M. Schwair (ICCD, 1990)

Complete self-test architecture for a coprocessor [cryptography]. - Thomas M. Schwair; Hartmut C. Ritter (ITC, 1990)

Design and Test of an Integrated Cryptochip. - Karlheinz Hafner; Hartmut C. Ritter; Thomas M. Schwair; Stefan Wallstab; Michael Deppermann; Jürgen Gessner; Stefan Koesters; Wolf-Dietrich Moeller; Gerd Sandweg (IEEE Des. Test Comput., 1991)