Max Hlywa, Robert Biddle, Andrew S. Patrick. Facing the facts about image type in recognition-based graphical passwords. In Robert H'obbes' Zakon, John P. McDermott, Michael E. Locasto, editors, Twenty-Seventh Annual Computer Security Applications Conference, ACSAC 2011, Orlando, FL, USA, 5-9 December 2011. pages 149-158, ACM, 2011. [doi]
Abstract is missing.