Juan Carlos Gomez Olac Fuentes Lia Athanassoula Albert Bosma Using Evolution Strategies to Find a Dynamical Model of the M81 Triplet. 404-410 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3215&spage=404 2004 conf/kes/2004-3 KES db/conf/kes/kes2004-3.html#GomezFAB04