Ronald Ashri Michael Luck An Agent Construction Model for Ubiquitous Computing Devices. 158-173 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3382&spage=158 2004 conf/aose/2004 AOSE db/conf/aose/aose2004.html#AshriL04