@Article{hoang13:_secur_invar_discr_trans_system, author = {Thai Son Hoang}, title = {Security Invariants in Discrete Transition Systems}, journal = {Formal Aspects of Computing}, year = 2013, volume = 25, number = 1, pages = {59--87}, publisher = {Springer-Verlag}, note = {\url{http://dx.doi.org/10.1007/s00165-012-0256-1}} }