@inproceedings{RE-1995-Zave,
	author        = "Pamela Zave",
	booktitle     = "{Proceedings of the Second International Symposium on Requirements Engineering}",
	doi           = "10.1109/ISRE.1995.512563",
	isbn          = "0-8186-7017-7",
	pages         = "214--216",
	publisher     = "{IEEE Computer Society}",
	title         = "{Classification of research efforts in requirements engineering}",
	year          = 1995,
}