@inproceedings{STOC-1984-VardiW,
	author        = "Moshe Y. Vardi and Pierre Wolper",
	booktitle     = "{Proceedings of the 16th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800057.808711",
	pages         = "446--456",
	publisher     = "{ACM}",
	title         = "{Automata Theoretic Techniques for Modal Logics of Programs}",
	year          = 1984,
}