Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAMURA Michio,Trends in Wild Chimpanzee Studies: from Journal Papers Published during 2000-2004,Primate Research,09124047,Primate Society of Japan,2005,21,1,27-46,https://cir.nii.ac.jp/crid/1390282680142685568,https://doi.org/10.2354/psj.21.27