E. Demidova, P. Fankhauser, X. Zhou, und W. Nejdl. Proc. of 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010., (2010)
S. Zerr, S. Siersdorfer, J. Hare, und E. Demidova. Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval, Seite 35--44. New York, NY, USA, ACM, (2012)