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) Yuichiro Nishioka and Ren Hirayama and Shigenori Kawano,X-ray computed tomography examination of a fossil beaver tooth from the lower Miocene Koura Formation of western Japan,Paleontological Research,13428144,Tokyo : Palaeontological Society of Japan,2011-04,15,1,43-50,https://cir.nii.ac.jp/crid/1524232505067975680,