著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Kosaka J,"Division of the process of humification in upland soils,and its application to soil classification",Soil science & plant nutrition,00380768,Tokyo : Japanese Society of Soil Science and Plant Nutrition,1963-05,9,3,????,https://cir.nii.ac.jp/crid/1520010380219981312,