@inproceedings{STOC-1988-Ko,
	author        = "Ker-I Ko",
	booktitle     = "{Proceedings of the 20th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/62212.62235",
	isbn          = "0-89791-264-0",
	pages         = "245--253",
	publisher     = "{ACM}",
	title         = "{Relativized Polynominal Time Hierarchies Having Exactly K Levels}",
	year          = 1988,
}