2024-03-29T05:49:36Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/406822019-03-18T09:46:10Zhdl_2115_40257hdl_2115_40231hdl_2115_139河川の自浄作用に関する研究 : 石狩川の流下時間と浄化速度恒数の推定についてA Study on the Self-purification of the Ishikari River丹保, 憲仁Tambo, Norihito森, 貞雄Mori, Sadaoopen access500北海道大学Hokkaido University1961-07-30jpndepartmental bulletin paperVoRhttp://hdl.handle.net/2115/406820385-602XAN00230223北海道大學工學部研究報告Bulletin of the Faculty of Engineering, Hokkaido University264368https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/40682/1/26_43-68.pdfapplication/pdf1.14 MB1961-07-30