The image communication information board: A hypermedia information system for standards and activities in the area of image communication. - Norbert Gerfelder; Christian Neuss (Comput. Graph., 1994)

Mobile Anwendungen. - Norbert Diehl; Norbert Gerfelder; Luc Neumann; Albert Held (Informationstechnik Tech. Inform., 1998)

Novel user interface technologies and conversational user interfaces for information appliances. - Norbert Gerfelder; Ulrike Spierling; Wolfgang Müller 004 (CHI Extended Abstracts, 2000)

The Telebuddy®: collective tele-presence and tele-conversation through physical avatars. - Johanna Dechau; Matthias Finke; Norbert Gerfelder; Rüdiger Ide; Thomas Kirste; Ulrike Spierling (Comput. Graph., 2001)