@INPROCEEDINGS{Tietze2011, author = {Tietze, Katja and Schlegel, Thomas}, title = {On Modeling a Social Networking Service Description}, booktitle = {Workshop GeNeMe ’11 Gemeinschaften in Neuen Medien: Virtual Enterprises, Communities \& Social Networks}, year = {2011}, editor = {Meißner, Klaus / Engelien, Martin}, address = {Dresden, Germany}, publisher = {TUDpress} }