A multimedia communication architecture for handheld devices. - Jens Meggers; Anthony Sang-Bum Park; Andreas Fasbender; Birgit Kreller (PIMRC, 1998)

UMTS: a middleware architecture and mobile API approach. - Birgit Kreller; Anthony Sang-Bum Park; Jens Meggers; Gunnar Forsgren; Ernö Kovacs; Michael Rosinus (IEEE Wirel. Commun., 1998)

Mobility Support with a Mobile Agent System. - Anthony Sang-Bum Park; Steffen Lipperts; Birgit Kreller; Björn Schiemann (IATA, 1999)