@article{cecchini09evolving,
author = "Roc\'{\i}o L. Cecchini and Carlos M. Lorenzetti and Ana G. Maguitman",
title = "Evolving {D}isjunctive and {C}onjunctive {T}opical {Q}ueries based on {M}ulti-objective {O}ptimization {C}riteria",
journal = "Inteligencia Artificial",
year = "2009",
volume = "13",
pages = "14--26",
number = "44",
doi = "10.4114/ia.v13i44.1042",
url = "http://polar.lsi.uned.es/revista/index.php/ia/article/download/620/602",
issn = "1137--3601",
}