Dominik Wojtczak Kousha Etessami PReMo : An Analyzer for P robabilistic Re cursive Mo dels. 66-71 2007 conf/tacas/2007 TACAS http://dx.doi.org/10.1007/978-3-540-71209-1_7 db/conf/tacas/tacas2007.html#WojtczakE07