Eichler, GeraldKüpper, AxelSchau, VolkmarFouchal, HacèneUnger, HerwigEichler, GeraldKüpper, AxelSchau, VolkmarFouchal, HacèneUnger, Herwig2019-01-112019-01-112011978-3-88579-280-2https://dl.gi.de/handle/20.500.12116/18995en11th International Conference on Innovative Internet Community Services (I2CS 2011)Text/Edited Book1617-5468