@article{oai:niigata-u.repo.nii.ac.jp:00030832, author = {石沢, 進}, journal = {新潟県植物保護, 新潟県植物保護}, month = {Aug}, pages = {9--9}, title = {菅名岳・日尊倉山のブナ自然林を保護地区に}, volume = {2}, year = {1987} }