Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KATSURA Toru,Recent Research on Papermaking Filler,Gypsum & Lime,0559331X,"The Society of Inorganic Materials, Japan",1990,1990,228,310-316,https://cir.nii.ac.jp/crid/1390001205389336320,https://doi.org/10.11451/mukimate1953.1990.310