@inproceedings{SIGAda-1999-Carpenter,
	author        = "Paul B. Carpenter",
	booktitle     = "{Proceedings of the ACM SIGAda Annual International Conference on Ada Technology}",
	doi           = "10.1145/319294.319299",
	pages         = "23--29",
	publisher     = "{ACM}",
	title         = "{Verification of requirements for saftey-critical software}",
	year          = 1999,
}