Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fumihiko Tomita and M. Den and T. Doke,Space radiation enhancement linked to geomagnetic disturbances,Biological sciences in space = 宇宙生物科学,09149201,桜井 : 日本宇宙生物科学会事務局,2001-10,15,Suppl,s169-175,https://cir.nii.ac.jp/crid/1520572358869894144,