@article{wiley1991,
	title = {The limitations of term co-occurrence data for query expansion in document retrieval systems},
	address = {Department of Information Studies, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom},
	author = {Helen J. Peat and Peter Willett},
	journal = {Journal of the American Society for Information Science},
	number = {5},
	pages = {378-383},
	publisher = {Copyright © 1991 John Wiley & Sons, Inc.},
	url = {http://www.iro.umontreal.ca/~nie/IFT6255/Peat_Willett_QExp.pdf},
	volume = {42},
	year = {1991},
	biburl = {http://www.bibsonomy.org/bibtex/296cc916a85ed034ea7fa72e4259b9f05/hotho},
	description = {Wiley InterScience: Journal: Abstract},
	doi = {10.1002/(SICI)1097-4571(199106)42:5<378::AID-ASI8>3.0.CO;2-8},
	keywords = {expansion ir query similarity term }
}