@inproceedings{PLILP-1991-Ait-KaciP,
	author        = "Hassan Aït-Kaci and Andreas Podelski",
	booktitle     = "{Proceedings of the Third International Symposium on Programming Language Implementation and Logic Programming}",
	doi           = "10.1007/3-540-54444-5_104",
	isbn          = "3-540-54444-5",
	note          = "long version: JLP 16(3&4): 195-234",
	pages         = "255--274",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Towards a Meaning of LIFE}",
	volume        = 528,
	year          = 1991,
}