Thomas S. Tullis, Donna P. Tedesco, Kate E. McCaffrey. Can users remember their pictorial passwords six years later. In Desney S. Tan, Saleema Amershi, Bo Begole, Wendy A. Kellogg, Manas Tungare, editors, Proceedings of the International Conference on Human Factors in Computing Systems, CHI 2011, Extended Abstracts Volume, Vancouver, BC, Canada, May 7-12, 2011. pages 1789-1794, ACM, 2011. [doi]
Abstract is missing.