Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iwasa Yasushi,On the siderite concretion in paddy soils,Pedologist,0031-4064,Japanese Society of Pedology,1959-12-30,3,2,53-58,https://cir.nii.ac.jp/crid/1390564237993679744,https://doi.org/10.18920/pedologist.3.2_53