Johannes Grünbauer H. Hollmann Jan Jürjens Guido Wimmel Modelling and Verification of Layered Security Protocols: A Bank Application. 116-129 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2788&spage=116 2003 conf/safecomp/2003 SAFECOMP db/conf/safecomp/safecomp2003.html#GrunbauerHJW03