Lachlan Aldred Wil M. P. van der Aalst Marlon Dumas Arthur H. M. ter Hofstede On the Notion of Coupling in Communication Middleware. 1015-1033 2005 conf/otm/2005-2 OTM Conferences (2) http://dx.doi.org/10.1007/11575801_6 db/conf/otm/otm2005-2.html#AldredADH05