Media Scaling for Audiovisual Communication with the Heidelberg Transport System. - Luca Delgrossi; Christian Halstrick; Dietmar Hehmann; Ralf Guido Herrtwich; Oliver Krone; Jochen Sandvoss; Carsten Vogt (ACM Multimedia, 1993)

Media Sharing in a Multimedia Communication System. - Luca Delgrossi; Christian Halstrick; Ralf Guido Herrtwich; Oliver Krone; Jochen Sandvoss; Carsten Vogt (Multim. Syst., 1994)