@inproceedings{STOC-1981-KrishnamurthyM,
	author        = "Balakrishnan Krishnamurthy and Robert N. Moll",
	booktitle     = "{Proceedings of the 13th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800076.802454",
	pages         = "28--37",
	publisher     = "{ACM}",
	title         = "{Examples of Hard Tautologies in the Propositional Calculus}",
	year          = 1981,
}