MHEG 5 - Standardized Presentation Objects for the Set Top Unit Environment. - Klaus Hofrichter (IDMS, 1996)

PENGUIN - Enabling and Combining DAVIC and the WWW. - Petra Hoepner; Reinhard Baier; Christian Gran; Klaus Hofrichter; Angela Scheller (ICMCS, 1997)

PENGUIN: DAVIC and the WWW in Coexistence. - Reinhard Baier; Christian Gran; Petra Hoepner; Klaus Hofrichter; Angela Scheller (IDMS, 1997)

An Approach for Script-Based Broadcast Application Production. - Andreas Kraft; Klaus Hofrichter (ECMAST, 1999)

Authoring of Teletext Applications for Digital Television Broadcast. - Christian Fuhrhop; Klaus Hofrichter; Andreas Kraft (IDMS, 1999)