David L. Martin Adam Cheyer Douglas B. Moran The Open Agent Architecture: A Framework for Building Distributed Software Systems. 91-128 1999 13 Applied Artificial Intelligence 1-2 http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=0883-9514&volume=13&issue=1&spage=91 db/journals/aai/aai13.html#MartinCM99