Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
HAYASHI Shôichirô,Radioactivity found in Kurokô (Black Ore) Type Deposits in Japan,Journal of the Mining and Metallurgical Institute of Japan,03694194,The Mining and Materials Processing Institute of Japan,1961,77,877,458-462,https://cir.nii.ac.jp/crid/1390001205981264768,https://doi.org/10.2473/shigentosozai1953.77.877_458