M. Kamvar, M. Kellar, R. Patel, и Y. Xu. Proceedings of the 18th international conference on World wide web, стр. 801--810. New York, NY, USA, ACM, (2009)
K. Church, и N. Oliver. Proceedings of the 13th International Conference on Human Computer Interaction with Mobile Devices and Services, стр. 67--76. New York, NY, USA, ACM, (2011)
K. Church, B. Smyth, K. Bradley, и P. Cotter. Proceedings of the 10th international conference on Human computer interaction with mobile devices and services, стр. 13--22. New York, NY, USA, ACM, (2008)
J. Li, S. Huffman, и A. Tokuda. Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval, стр. 43--50. New York, NY, USA, ACM, (2009)
A. Amin, S. Townsend, J. Ossenbruggen, и L. Hardman. Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I, стр. 736--749. Berlin, Heidelberg, Springer-Verlag, (2009)