Tatsuya Okabe Yaochu Jin Markus Olhofer Bernhard Sendhoff On Test Functions for Evolutionary Multi-objective Optimization. 792-802 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3242&spage=792 2004 conf/ppsn/2004 PPSN db/conf/ppsn/ppsn2004.html#OkabeJOS04