@inproceedings{VLDB-1993-WolniewiczG,
	author        = "Richard H. Wolniewicz and Goetz Graefe",
	booktitle     = "{Proceedings of the 19th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1993/P013.PDF",
	isbn          = "1-55860-152-X",
	pages         = "13--24",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Algebraic Optimization of Computations over Scientific Databases}",
	year          = 1993,
}