?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ono&rft.aufirst=Y.&rft.au=+Ono+Y.&rft.volume=24&rft.issn=0001-6721&rft.pages=233-237&rft.title=Acta+physica+et+chemica&rft.atitle=Ring+transformation+of+tetrahydrofuran+into+tetrahydrophiopene+over+alkali+metal+cation+exchanged+zeolites&rft.date=1978&rft.issue=1-2&rft.genre=article