@inproceedings{SIGMOD-1980-ChiuH,
	author        = "D. M. Chiu and Yu-Chi Ho",
	booktitle     = "{Proceedings of the 10th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD80/P169.PDF",
	doi           = "10.1145/582250.582277",
	pages         = "169--178",
	publisher     = "{ACM Press}",
	title         = "{A Methodology for Interpreting Tree Queries Into Optimal Semi-Join Expressions}",
	year          = 1980,
}