@inproceedings{VLDB-1989-Ioannidis,
	author        = "Yannis E. Ioannidis",
	booktitle     = "{Proceedings of the 15th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1989/P155.PDF",
	isbn          = "1-55860-101-5",
	pages         = "155--163",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Commutativity and its Role in the Processing of Linear Recursion}",
	year          = 1989,
}