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) Erica Di Pierro and Ambrogio Molinari and Guido Tosi,Exclusive core areas and intrasexual territoriality in Eurasian red squirrels (Sciurus vulgaris) revealed by incremental cluster polygon analysis,Ecological research,09123814,Tokyo : Springer Japan,2008-05,23,3,529-542,https://cir.nii.ac.jp/crid/1521417755656720256,