Hågen Hasle Yngve Kristiansen Ketil Kintel Einar Snekkenes Measuring Resistance to Social Engineering. 132-143 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3439&spage=132 2005 conf/ispec/2005 ISPEC db/conf/ispec/ispec2005.html#HasleKKS05