J. Heer, F. Viégas, and M. Wattenberg. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, page 1029--1038. New York, NY, USA, ACM, (2007)
J. Heer, F. Viégas, and M. Wattenberg. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, page 1029--1038. New York, NY, USA, ACM, (2007)