@inproceedings{GuMaSt_WoWMoM11, author = {Felix G{\"u}nther and Mark Manulis and Thorsten Strufe}, title = {{Key Management in Distributed Online Social Networks}}, booktitle = {12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WOWMOM)}, year = {2011}, pages = {1--7}, publisher = {IEEE}}