S. Xu, S. Bao, B. Fei, Z. Su, и Y. Yu. Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, стр. 155--162. New York, NY, USA, ACM, (2008)
P. Chirita, W. Nejdl, R. Paiu, и C. Kohlsch&\#252;tter. SIGIR '05: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, стр. 178--185. New York, NY, USA, ACM Press, (2005)
D. Limbu, A. Connor, R. Pears, и S. Macdonell. IIiX: Proceedings of the 1st international conference on Information interaction in context, стр. 138--143. New York, NY, USA, ACM, (2006)