@article{ESOP-J-1994-BidoitHW95,
	author        = "Michel Bidoit and Rolf Hennicker and Martin Wirsing",
	doi           = "10.1016/0167-6423(95)00014-3",
	journal       = "{Science of Computer Programming}",
	number        = "2-3",
	pages         = "149--186",
	title         = "{Behavioural and Abstractor Specifications}",
	volume        = 25,
	year          = 1995,
}