B. Macek, M. Atzmueller, and G. Stumme. Privacy, Security, Risk and Trust (PASSAT), 2011 IEEE Third International Conference on and 2011 IEEE Third International Confernece on Social Computing (SocialCom), (2011)
M. Atzmüller, D. Benz, A. Hotho, and G. Stumme. Alexandre Passant, Sergio Fernández, John Breslin, Uldis Bojars (Eds.), Proceedings of the 4th international workshop on Social Data on the Web SDoW2011, 2011., (2011)