@inproceedings{STOC-1993-KarchmerW,
	author        = "Mauricio Karchmer and Avi Wigderson",
	booktitle     = "{Proceedings of the 25th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/167088.167230",
	isbn          = "0-89791-591-7",
	pages         = "532--540",
	publisher     = "{ACM}",
	title         = "{Characterizing non-deterministic circuit size}",
	year          = 1993,
}