Martyn Fletcher E. Garcia-Herreros J. Christensen S. Misbah Deen R. Mittmann An Open Architecture for Holonic Cooperation and Autonomy. 224-230 2000 conf/dexaw/2000 DEXA Workshop http://computer.org/proceedings/dexa/0680/06800224abs.htm db/conf/dexaw/dexaw2000.html#FletcherGCDM00