@inproceedings {4102,
	title = {Reciprocal Rank Fusion Outperforms Condorcet and Individual Rank Learning Methods},
	booktitle = {International Conference on Research and Development in Information Retrieval (SIGIR)},
	year = {2009},
	doi = {10.1145/1571941.1572114},
	author = {Gordon Cormack and Charles Clarke and Stefan B{\"u}ttcher}
}
