Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KATO Etsuo,Clays in Ceramic Technology,Journal of the Clay Science Society of Japan (in Japanese),04706455,The Clay Science Society of Japan,1977,17,4,171-175,https://cir.nii.ac.jp/crid/1390282679089411840,https://doi.org/10.11362/jcssjnendokagaku1961.17.171