@article{billhardt-et-al_ijufks2003,
author = {Billhardt, Holger and Borrajo, Daniel and Maojo, Victor},
journal = {International Journal of Uncertainty, Fuzziness and Knowldege-Based
Systems},
number = 1,
pages = {87 -- 113},
title = {Learning retrieval expert combinations with genetic algorithms},
volume = 11,
year = 2003,
}