@article{久津那_1953, title={Ca, Mg の Versenate 測定法に於ける妨害イオンの除去に就いて}, volume={24}, DOI={10.20710/dojo.24.1_56_2}, number={1}, publisher={Japanese Society of Soil Science and Plant Nutrition}, author={久津那, 久津那}, year={1953} }