@inproceedings{AdaEurope-1991-ChengU,
	author        = "Jingde Cheng and Kazuo Ushijima",
	booktitle     = "{Proceedings of the Ada-Europe International Conference: The Choice for ’92}",
	doi           = "10.1007/BFb0018493",
	isbn          = "3-540-54092-X",
	pages         = "125--146",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Analyzing Ada Tasking Deadlocks and Livelocks Using Extended Petri Nets}",
	volume        = 499,
	year          = 1991,
}