Daniel Frey Tim Stockheim Peer-Oliver Woelk Roland Zimmermann Integrated Multi-agent-based Supply Chain Management. 24-29 2003 conf/wetice/2003 WETICE http://csdl.computer.org/comp/proceedings/wetice/2003/1963/00/19630024abs.htm db/conf/wetice/wetice2003.html#FreySWZ03