?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Bryans%2C+Jeremy+W.&rft.aulast=Bryans&rft.aufirst=Jeremy+W.&rft.date=12+April+2011&rft.title=Refinement-based+techniques+in+the+analysis+of+information+flow+policies+for+dynamic+virtual+organisations&rft.genre=proceeding