Alexander Babanov Wolfgang Ketter Maria L. Gini An Evolutionary Approach for Studying Heterogeneous Strategies in Electronic Markets. 157-168 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2977&spage=157 2003 conf/atal/2003esoa Engineering Self-Organising Systems db/conf/atal/esoa2003.html#BabanovKG03