@inproceedings{STOC-1971-LevyJ,
	author        = "Leon S. Levy and Aravind K. Joshi",
	booktitle     = "{Proceedings of the Third Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800157.805040",
	pages         = "78--85",
	publisher     = "{ACM}",
	title         = "{Some Results in Tree Automata}",
	year          = 1971,
}