@TechReport{Margaria91, author = "Tiziana Margaria", title = "First-{O}rder theories for the verification of complex {FSM}s", institution = "RWTH Aachen", year = "1991", number = "AIB-30-1991", url = "http://aib.informatik.rwth-aachen.de/1991/1991-30.ps.gz", }