Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
RAUSCH R. L.,"Notes on the black bear, Ursus americanus Pallas, in Alaska, with particular reference to dentition and growth",Z. Saeugetierkd.,,,1961,26,,65-128,https://cir.nii.ac.jp/crid/1570291225315939840,