@inproceedings{ALP-1988-HansenL,
	author        = "Horst Hansen and Michael Löwe",
	booktitle     = "{Proceedings of the First International Workshop on Algebraic and Logic Programming}",
	doi           = "10.1007/3-540-50667-5_69",
	isbn          = "3-540-50667-5",
	pages         = "168--179",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Modular Algebraic Specifications}",
	volume        = 343,
	year          = 1988,
}