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",Proposed characterization of tornadoes and hurricanes by area and intensity,,"Satellite and Mesometeorology Research Project, Dept. of the Geophysical Sciences, University of Chicago",1971,SMRP research paper,,,,https://cir.nii.ac.jp/crid/1130292384361153283