@inproceedings{STOC-1973-AhoHU,
	author        = "Alfred V. Aho and John E. Hopcroft and Jeffrey D. Ullman",
	booktitle     = "{Proceedings of the Fifth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800125.804056",
	pages         = "253--265",
	publisher     = "{ACM}",
	title         = "{On Finding Lowest Common Ancestors in Trees}",
	year          = 1973,
}