E. Adar, J. Teevan, and S. Dumais. CHI '08: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems, page 1197--1206. New York, NY, USA, ACM, (2008)
J. Kim, D. Gunn, E. Schuh, B. Phillips, R. Pagulayan, and D. Wixon. CHI '08: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems, page 443--452. New York, NY, USA, ACM, (2008)
L. Paganelli, and F. Paternò. IUI '02: Proceedings of the 7th international conference on Intelligent user interfaces, page 111--118. New York, NY, USA, ACM, (2002)
R. Atterer, and A. Schmidt. CHI '07: Proceedings of the SIGCHI conference on Human factors in computing systems, page 1347--1350. New York, NY, USA, ACM, (2007)
P. Yeung, C. Clarke, and S. Büttcher. SIGIR '07: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, page 759--760. New York, NY, USA, ACM, (2007)