Victor Muntés-Mulero Néstor Lafón-Gracia Josep Aguilar-Saborit Josep-Lluis Larriba-Pey Improving Quality and Convergence of Genetic Query Optimizers. 6-17 2007 conf/dasfaa/2007 DASFAA http://dx.doi.org/10.1007/978-3-540-71703-4_3 db/conf/dasfaa/dasfaa2007.html#Muntes-MuleroLAL07