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 World Meteorological Organization and US National Ice Center,"Proceedings of the workshop on sea-ice charts of the Arctic (Seattle, WA, USA, 5-7 August 1998)",,Secretariat of the World Meteorological Organization,1999,WMO/TD,,,,https://cir.nii.ac.jp/crid/1130282271755659904