%0 Book Section %1 atzmueller2012facetoface %A Atzmueller, Martin %A Doerfel, Stephan %A Hotho, Andreas %A Mitzlaff, Folke %A Stumme, Gerd %B Modeling and Mining Ubiquitous Social Media %C Heidelberg, Germany %D 2012 %I Springer Verlag %K 2012 conference contacts dynamics face intelligence itegpub kde mining myown social ubiquitous venus venuspub %T Face-to-Face Contacts at a Conference: Dynamics of Communities and Roles %V 7472