Yimin Liu Tansel Özyer Reda Alhajj Ken Barker Integrating Multi-Objective Genetic Algorithm and Validity Analysis for Locating and Ranking Alternative Clustering. 33-40 2005 29 Informatica (Slovenia) 1 http://www.informatica.si/PDF/29-1/03_Liu-Integrating%20multi-objective%20genetic..._No%203.pdf db/journals/informaticaSI/informaticaSI29.html#LiuOAB05