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
International Civil Aviation Organization,Methodology for the derivation of separation minima applied to the spacing between parallel tracks in ats route structures,2nd ed,International Civil Aviation Organization,1976,ICAO circular,,,,https://cir.nii.ac.jp/crid/1130000794961651072