Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Sugihara, Shigehiko",Effect of cloud and sun positions upon the horizontal distribution of solar radiation incident on the earth's surface,Journal of National Fisheries University,03709361,水産大学校,1995-12,44,1,1-7,https://cir.nii.ac.jp/crid/1050564287704557568,