Panagiotis Manolios Marc Galceran Oms Sergi Oliva Valls Checking Pedigree Consistency with PCS. 339-342 2007 conf/tacas/2007 TACAS http://dx.doi.org/10.1007/978-3-540-71209-1_26 db/conf/tacas/tacas2007.html#ManoliosOV07