S. Doerfel, D. Zoller, P. Singer, T. Niebler, A. Hotho, und M. Strohmaier. Proceedings of the Companion Publication of the 23rd International Conference on World Wide Web Companion, Seite 251-252. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2014)
S. Doerfel, D. Zoller, P. Singer, T. Niebler, A. Hotho, und M. Strohmaier. Proceedings of the Companion Publication of the 23rd International Conference on World Wide Web Companion, Seite 251-252. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2014)
S. Gollapalli, C. Caragea, P. Mitra, und C. Giles. Proceedings of the 22nd international conference on World Wide Web, Seite 471--482. International World Wide Web Conferences Steering Committee, (2013)