Atzmueller, Martin, Doerfel, Stephan, Hotho, Andreas, Mitzlaff, Folke and Stumme, Gerd. "Face-to-Face Contacts at a Conference: Dynamics of Communities and Roles." In Modeling and Mining Ubiquitous Social Media . Heidelberg, Germany: Springer Verlag, 2012.

Atzmueller, Martin, Doerfel, Stephan, Hotho, Andreas, Mitzlaff, Folke and Stumme, Gerd. "Face-to-Face Contacts at a Conference: Dynamics of Communities and Roles." In Modeling and Mining Ubiquitous Social Media . Heidelberg, Germany: Springer Verlag, 2012.

Atzmueller, Martin, Doerfel, Stephan, Hotho, Andreas, Mitzlaff, Folke and Stumme, Gerd. "Face-to-Face Contacts during LWA 2010 - Communities, Roles, and Key Players." Paper presented at the meeting of the Working Notes of the LWA 2011 - Learning, Knowledge, Adaptation, 2011.