Mateus Barcellos Costa Rodolfo F. Resende Mirian Halfeld Ferrari Alves Marcelo Eduardo Vieira Segatto Business to Business Transaction Modeling and WWW Support. 132-147 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3080&spage=132 2004 conf/bpm/2004 Business Process Management db/conf/bpm/bpm2004.html#CostaRAS04