@incollection{TUW-205305, author = {Dorn, J{\"u}rgen and Labitzke, Stefan}, title = {Extracting Social Relationships from Social Software}, booktitle = {Handbook of Research on Business Social Networking: Organizational, Managerial, and Technological Dimensions}, year = {2011}, pages = {405--417}, publisher = {IGI Global}, isbn = {1613501684}, doi = {10.4018/978-1-61350-168-9.ch021}, keywords = {Social software, social network analysis} }