@inproceedings{STOC-1990-PapadimitriouSY,
	author        = "Christos H. Papadimitriou and Alejandro A. Schäffer and Mihalis Yannakakis",
	booktitle     = "{Proceedings of the 22nd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/100216.100274",
	isbn          = "0-89791-361-2",
	pages         = "438--445",
	publisher     = "{ACM}",
	title         = "{On the Complexity of Local Search}",
	year          = 1990,
}