@inproceedings{SIGIR-1990-Rousseau,
	author        = "Ronald Rousseau",
	booktitle     = "{Proceedings of the 13th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1990/P495.pdf",
	doi           = "10.1145/96749.98255",
	isbn          = "0-89791-408-2",
	pages         = "495--508",
	publisher     = "{ACM}",
	title         = "{Extended Boolean Retrieval: A Heuristic Approach?}",
	year          = 1990,
}