Brahim Medjahed Boualem Benatallah Athman Bouguettaya Anne H. H. Ngu Ahmed K. Elmagarmid Business-to-business interactions: issues and enabling technologies. 59-85 2003 12 VLDB J. 1 http://springerlink.metapress.com/openurl.asp?genre=article&issn=1066-8888&volume=12&issue=1&spage=59 db/journals/vldb/vldb12.html#MedjahedBBNE03