ISO OSI FTAM and High Speed File Transfer: No Contradiction. - Martin Bever; Ulrich Schäffer; Claus Schottmüller (HPN, 1992)

Coding Rules for High Speed Networks. - Martin Bever; Ulrich Schäffer (ULPAA, 1992)

CoDraft: An Object-Based Drafting Tool on Top of Group Communication Services. - Thomas Kirsche; Richard Lenz; Horst Lührsen; Klaus Meyer-Wegener; Hartmut Wedekind; Martin Bever; Ulrich Schäffer; Claus Schottmüller (GI Jahrestagung, 1993)

Communication support for cooperative work. - Thomas Kirsche; Richard Lenz; Horst Lührsen; Klaus Meyer-Wegener; Hartmut Wedekind; Martin Bever; Ulrich Schäffer; Claus Schottmüller (Comput. Commun., 1993)

MPPS - A Multiparty Presentation Service. - Ulrich Schäffer (ULPAA, 1994)