@inproceedings{STOC-1989-BorodinRT,
	author        = "Allan Borodin and Walter L. Ruzzo and Martin Tompa",
	booktitle     = "{Proceedings of the 21st Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/73007.73061",
	isbn          = "0-89791-307-8",
	pages         = "562--573",
	publisher     = "{ACM}",
	title         = "{Lower Bounds on the Length of Universal Traversal Sequences}",
	year          = 1989,
}