?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hoang%2C+Thai+Son&rft.aulast=Hoang&rft.aufirst=Thai+Son&rft.date=February+2009&rft.atitle=Developing+Topology+Discovery+in+Event-B&rft.title=Integrated+Formal+Methods&rft.pages=1-19&rft.genre=article