@article{oai:akita.repo.nii.ac.jp:00000208, author = {羽田, 守夫}, journal = {研究紀要}, month = {Feb}, note = {16, KJ00003571890, 論文, Article}, pages = {71--75}, title = {雄物川の汚濁負荷量と自浄作用}, volume = {10}, year = {1975} }