Virginia Ruiz-Albacete Pedro Tome-Gonzalez Fernando Alonso-Fernandez Javier Galbally Julian Fiérrez-Aguilar Javier Ortega-Garcia Direct Attacks Using Fake Images in Iris Verification. 181-190 2008 BIOID http://dx.doi.org/10.1007/978-3-540-89991-4_19 conf/bioid/2008 db/conf/bioid/bioid2008.html#Ruiz-AlbaceteTAGFO08