@inproceedings{billhardt-et-al_acm2002,
  author       = {Billhardt, Holger and Borrajo, Daniel and Maojo, Víctor},
  pages        = {657 -- 662},
  title        = {Using genetic algorithms to find suboptimal retrieval expert
    combinations},
  year         = 2002,
  booktitle    = {Proceedings of the ACM Symposium on Applied Computing},
}