Simona Orzan Wieger Wesselink Tim A. C. Willemse Static Analysis Techniques for Parameterised Boolean Equation Systems. 230-245 2009 TACAS http://dx.doi.org/10.1007/978-3-642-00768-2_22 conf/tacas/2009 db/conf/tacas/tacas2009.html#OrzanWW09