@inproceedings{FSE-2002-LetierL,
	author        = "Emmanuel Letier and Axel van Lamsweerde",
	booktitle     = "{Proceedings of the 10th Symposium on Foundations of Software Engineering}",
	doi           = "10.1145/587051.587070",
	isbn          = "1-58113-514-9",
	pages         = "119--128",
	publisher     = "{ACM}",
	title         = "{Deriving operational software specifications from system goals}",
	year          = 2002,
}