@inproceedings{SEKE-1989-Czejdo,
	author        = "Bogdan D. Czejdo",
	booktitle     = "{Proceedings of the First International Conference on Software Engineering and Knowledge Engineering}",
	pages         = "140--145",
	publisher     = "{Knowledge Systems Institute}",
	title         = "{Recursive Query Specification Using Nested Databases}",
	year          = 1989,
}