?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=B%C3%A9gout&rft.aufirst=Pascal&rft.issue=2&rft.volume=12&rft.date=2002&rft.issn=1343-4373&rft.atitle=Necessary+Conditions+and+Sufficient+Conditions+for+Global+Existence+in+the+Nonlinear+Schr%C3%B6dinger+Equation&rft.title=Advances+in+mathematical+sciences+and+applications&rft.pages=817-827&rft.genre=article