Flexible Quality-of-Service Technology for Supporting Voice/Data-Integrated Nomadic Networking. - Hendrik Decker; Michael Krautgärtner (Flexible Working - New Network Technologies, 1999)

A Mobile Middleware Component Providing Voice over IP Services to Mobile Users. - Michael Wallbaum; Dominique Carrega; Michael Krautgärtner; Hendrik Decker (ECMAST, 1999)

High Quality Mobile Communication. - Hannes Hartenstein; Andreas Schrader; Andreas Kassler; Michael Krautgärtner; Christoph Niedermeier (Kommunikation in Verteilten Systemen, 2001)