@inproceedings{STOC-1983-ChandraFL83a,
	author        = "Ashok K. Chandra and Steven Fortune and Richard J. Lipton",
	booktitle     = "{Proceedings of the 15th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800061.808732",
	pages         = "52--60",
	publisher     = "{ACM}",
	title         = "{Unbounded Fan-in Circuits and Associative Functions}",
	year          = 1983,
}