@inproceedings{LOPSTR-1993-Neugebauer,
	author        = "Gerd Neugebauer",
	booktitle     = "{Proceedings of the Third International Workshop on Logic Program Synthesis and Transformation}",
	isbn          = "['3-540-19864-4', '0-387-19864-4']",
	pages         = "32--44",
	publisher     = "{Springer-Verlag}",
	series        = "{Workshops in Computing}",
	title         = "{Reachability Analysis for the Extension Procedure — A Topological Result}",
	year          = 1993,
}