@inproceedings{STOC-1994-JiangLW,
	author        = "Tao Jiang and Eugene L. Lawler and Lusheng Wang",
	booktitle     = "{Proceedings of the 26th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/195058.195454",
	isbn          = "0-89791-663-8",
	pages         = "760--769",
	publisher     = "{ACM}",
	title         = "{Aligning sequences via an evolutionary tree: complexity and approximation}",
	year          = 1994,
}