Stanislaw Ambroszkiewicz enTish: An Approach to Service Composition. 168-178 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2819&spage=168 2003 conf/tes/2003 TES db/conf/tes/tes2003.html#Ambroszkiewicz03