@inproceedings{STOC-1990-SundarT,
	author        = "Rajamani Sundar and Robert Endre Tarjan",
	booktitle     = "{Proceedings of the 22nd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/100216.100219",
	isbn          = "0-89791-361-2",
	pages         = "18--25",
	publisher     = "{ACM}",
	title         = "{Unique Binary Search Tree Representations and Equality-testing of Sets and Sequences}",
	year          = 1990,
}