Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
"Ikeda, Tohru",Toward Construction of Regional Nature Conservation System. : Human and social scientific study of ecology and nature conservation,The annual reports on cultural science,04376668,北海道大學文學部,1998-12-25,47,3,179-209,https://cir.nii.ac.jp/crid/1050282813973043200,