@inproceedings{STOC-1980-Yao,
	author        = "F. Frances Yao",
	booktitle     = "{Proceedings of the 12th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800141.804691",
	pages         = "429--435",
	publisher     = "{ACM}",
	title         = "{Efficient Dynamic Programming Using Quadrangle Inequalities}",
	year          = 1980,
}