Cao, Yiwei, Ehms, Karsten, Fiedler, Sebastian, Hofer, Margit, Kaiamo, Anna-Kaarina, Kieslinger, Barbara, Klamma, Ralf, Krause, Beate, Kravcik, Milos, Ryyppö, Tommi, Spaniol, Marc, Stumme, Gerd, Wild, Fridolin, Rezension zu: Case study on social software use in distributed working environments (2007).