G. Groh, und C. Ehmig. GROUP '07: Proceedings of the 2007 international ACM conference on Supporting group work, Seite 127--136. New York, NY, USA, ACM, (2007)
R. Kern, C. Korner, und M. Strohmaier. Research and Advanced Technology for Digital Libraries, Volume 6273 von Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2010)
R. Wetzker, C. Zimmermann, C. Bauckhage, und S. Albayrak. Proceedings of the third ACM international conference on Web search and data mining, Seite 71--80. New York, NY, USA, ACM, (2010)
G. Groh, und C. Ehmig. GROUP '07: Proceedings of the 2007 international ACM conference on Supporting group work, Seite 127--136. New York, NY, USA, ACM, (2007)
G. Groh, und C. Ehmig. GROUP '07: Proceedings of the 2007 international ACM conference on Supporting group work, Seite 127--136. New York, NY, USA, ACM, (2007)