Chiara Braghin Natasha Sharygina Katerina Barone-Adesi Automated Verification of Security Policies in Mobile Code. 37-53 2007 conf/ifm/2007 IFM http://dx.doi.org/10.1007/978-3-540-73210-5_3 db/conf/ifm/ifm2007.html#BraghinSB07