@conference {Nie_93:Adjusting,
	title = {Adjusting the performance of an information retrieval system},
	booktitle = {CM 2nd Conference on Information and Knowledge Management, Washington},
	year = {1993},
	month = {nov},
	pages = {726-728},
	author = {Jian-Yun Nie and Fran{\c c}ois Paradis and Vaucher, J.}
}
