@inproceedings{LICS-1987-KfouryTU,
	author        = "A. J. Kfoury and Jerzy Tiuryn and Pawel Urzyczyn",
	booktitle     = "{Proceedings of the Second Symposium on Logic in Computer Science}",
	pages         = "225--235",
	publisher     = "{IEEE Computer Society}",
	title         = "{The Hierarchy of Finitely Typed Functional Programs}",
	year          = 1987,
}