@article {CanoCHS02, title = {A greedy randomized adaptive search procedure applied to the clustering problem as an initialization process using K-Means as a local search procedure}, journal = {Journal of Intelligent and Fuzzy Systems}, volume = {12}, number = {3-4}, year = {2002}, pages = {235{\textendash}242}, author = {J. R. Cano and O. Cord{\'o}n and F. Herrera and Luciano S{\'a}nchez} }