@inproceedings{SIGMOD-1986-Sellis,
	author        = "Timos K. Sellis",
	booktitle     = "{Proceedings of the 16th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD86/P191.PDF",
	doi           = "10.1145/16894.16874",
	pages         = "191--205",
	title         = "{Global Query Optimization}",
	year          = 1986,
}