Georg Zimmermann Ralph Grothmann Christoph Tietz Ralph Neuneier Market Modeling Based on Cognitive Agents. 1061-1067 2002 conf/icann/2002 ICANN http://link.springer.de/link/service/series/0558/bibs/2415/24151061.htm db/conf/icann/icann2002.html#ZimmermannGTN02