@inproceedings{STOC-1994-Kurshan,
	author        = "Robert P. Kurshan",
	booktitle     = "{Proceedings of the 26th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/195058.195194",
	isbn          = "0-89791-663-8",
	pages         = "365--371",
	publisher     = "{ACM}",
	title         = "{The complexity of verification}",
	year          = 1994,
}