?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ishikawa&rft.aufirst=Satoshi&rft.au=+Ishikawa+Satoshi&rft.volume=87&rft.issn=2064-8316&rft.pages=121-162&rft.title=Acta+scientiarum+mathematicarum&rft.atitle=The+Radon+transform+for+double+fibrations+of+semisimple+symmetric+spaces&rft.date=2021&rft.issue=1-2&rft.genre=article