@inproceedings{STOC-1973-Baker,
	author        = "Brenda S. Baker",
	booktitle     = "{Proceedings of the Fifth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800125.804051",
	pages         = "200--206",
	publisher     = "{ACM}",
	title         = "{Tree Transductions and Families of Tree Languges}",
	year          = 1973,
}