@incollection{26, author = {A.G López and Enrique Herrera-Viedma and Francisco Herrera and Carlos Porcel and S Alonso}, title = {Multi-objective Evolutionary Algorithms in the Automatic Learning of Boolean Queries: A Comparative Study}, year = {2007}, volume = {42}, pages = {71-80}, publisher = {Springer-Verlag}, url = {http://www.springerlink.com/content/884876517v16v136/fulltext.pdf}, }