?url_ver=Z39.88-2004&rft_id=MTMT%3A27996+10.1002%2Frcm.1290090716&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Oksman+Pentti&rft.aulast=Oksman&rft.aufirst=Pentti&rft.issue=7&rft.volume=9&rft.issn=0951-4198&rft.date=1995&rft.title=RAPID+COMMUNICATIONS+IN+MASS+SPECTROMETRY&rft.pages=615-624&rft.atitle=Fragmentation+and+intramolecular+cyclization+in+cyclopentane%E2%80%904%2C5%E2%80%90fused+2%E2%80%90N%E2%80%90phenyliminoperhydro%E2%80%901%2C3%E2%80%90oxazines+and+related+thiazines+under+electron+impact+ionization&rft.genre=article