Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OHARA Hideharu and YOKOBORI Jr. A. Toshimitsu and NOJIRI Keichi,Experimental and Analytical Studies on Fracture Toughness of Alumina Ceramics,"Journal of the Ceramic Association, Japan",00090255,The Ceramic Society of Japan,1987,95,1107,1059-1066,https://cir.nii.ac.jp/crid/1390282680225695360,https://doi.org/10.2109/jcersj1950.95.1107_1059