@inproceedings{STOC-2002-Ben-Sasson02a,
	author        = "Eli Ben-Sasson",
	booktitle     = "{Proceedings of the 34th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/509907.509988",
	isbn          = "1-58113-495-9",
	pages         = "563--572",
	publisher     = "{ACM}",
	title         = "{Hard examples for bounded depth frege}",
	year          = 2002,
}