H. Olivier and N. Pinkwart. Does "Virtually Being There" Help? Comparing Collaborative Work between 3D and 2D conditions. Proceedings of the 17th CRIWG Conference on Collaboration and Technology (CRIWG), Springer Verlag, issue 6969, 2011.

A. Ceylan. Nonverbale Kommunikation in virtuellen 3D-Kooperationssystemen. 2010.

H. Olivier and N. Pinkwart. Towards Supporting Phases in Collaborative Writing Processes. Proceedings of the 6th International Conference on Cooperative Design, Visualization and Engineering (CDVE), Springer Verlag, issue 5738, 2009.

N. Pinkwart and H. Olivier. Cooperative Virtual Worlds - a viable eCollaboration pathway or merely a gaming trend? Electronic Markets, Special Issue on eCollaboration, volume 19, issue 4, 2009.

C. Mumme, H. Olivier, and N. Pinkwart. A Framework for Interaction Analysis and Feedback in Collaborative Virtual Worlds. Proceedings of the 14th International Conference on Concurrent Enterprising (ICE), Centre for Concurrent Enterprise, 2008.