著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Fujita, Tetsuya Theodore",F-scale classification of 1971 tornadoes,,"Satellite and Mesometeorology Research Project, Dept. of the Geophysical Sciences, University of Chicago",1972,SMRP research paper,,,,https://cir.nii.ac.jp/crid/1130010986061035924