Kemal Bicakci Nart Bedin Atalay Mustafa Yuceel Paul C. van Oorschot Exploration and Field Study of a Password Manager Using Icon-Based Passwords. 104-118 2011 Financial Cryptography Workshops http://dx.doi.org/10.1007/978-3-642-29889-9_9 conf/fc/2011w db/conf/fc/fc2011w.html#BicakciAYO11