Modeling Modifications of Multimedia Learning Resources Using Ontology-Based Representations. - Marek Meyer; Sonja Bergsträsser; Birgit Zimmermann; Christoph Rensing; Ralf Steinmetz (MMM (1), 2007)

Virtual context based services for support of interaction in virtual worlds. - Sonja Bergsträsser; Tomas Hildebrandt; Lasse Lehmann; Christoph Rensing; Ralf Steinmetz (NETGAMES, 2007)

Dynamic voice communication support for multiplayer online games. - Tomas Hildebrandt; Sonja Bergsträsser; Christoph Rensing; Ralf Steinmetz (NETGAMES, 2008)

A Middleware for the Controlled Information Exchange Between Online Games and Internet Applications. - Sonja Bergsträsser; Tomas Hildebrandt; Christoph Rensing; Ralf Steinmetz (KiVS, 2009)

Capturing and storing profile information for gamers playing multiplayer online games. - Tomas Hildebrandt; Sonja Bergsträsser; Christoph Rensing; Ralf Steinmetz (NETGAMES, 2009)

Quality of experience of voice communication in large-scale mobile ad hoc networks. - Christian Gottron; André König; Matthias Hollick; Sonja Bergsträßer; Tomas Hildebrandt; Ralf Steinmetz (Wireless Days, 2009)

Virtual context based services for multiplayer online games to facilitate community participation. - Sonja Bergsträsser; Tomas Hildebrandt; Christoph Rensing; Ralf Steinmetz (Multim. Tools Appl., 2009)

Virtuell kontextbasierte Dienste: Definition, Beschreibung und Verwendung von Kontext in virtuellen Welten. - Sonja Bergsträßer (2010)

Robust Overlay Routing in Structured, Location Aware Mobile Peer-to-Peer Systems. - Christian Gottron; Sonja Bergsträßer; Ralf Steinmetz (MobiQuitous, 2013)

CPaaS: Context Processing as a Service. - Daniel Burgstahler; Sonja Bergsträßer; Doreen Böhnstedt; Andreas Reinhardt 001; Alaa Alhamoud; Frank Englert; Johannes Schmitt 001; Ralf Steinmetz (Prax. Inf.verarb. Kommun., 2013)

The Bitcoin Universe: An Architectural Overview of the Bitcoin Blockchain. - Paul Müller 001; Sonja Bergsträßer; Amr Rizk; Ralf Steinmetz (DFN-Forum Kommunikationstechnologien, 2018)