著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Hisashi Hayakawa and Daisuke Suzuki and Sophie Mathieu and Laure Lefèvre and Hitoshi Takuma and Eijiro Hiei,Sunspot observations at Kawaguchi Science Museum: 1972 – 2013,Geoscience Data Journal,2049-6060,Wiley,2022-12-26,10,1,87-98,https://cir.nii.ac.jp/crid/1360580232391663232,https://doi.org/10.1002/gdj3.158