T.  Göhnert, Ziebarth, S., Malzahn, N., and H. Hoppe, U., ?Enriching (Learning) Community Platforms with Learning Analytics Components?, in Collaboration and Technology, vol. 8658, N.  Baloian, Burstein, F., Ogata, H., Santoro, F., and Zurita, G., Eds. Springer International Publishing, 2014, pp. 177-184.

S.  Zeini, Göhnert, T., Hoppe, H. U., and Krempel, L., ?The impact of measurement time on subgroup detection in online communities?, in Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012), 2012, pp. 389?394.

T.  Göhnert, Malzahn, N., and Hoppe, H. U., ?A flexible multi-mode undo mechanism for a collaborative modeling environment?, in Groupware: Design, Implementation, and Use, Springer, 2009.