Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hirai Shoji,Analysis and Evaluation of Cultural Properties,Materia Japan,13402625,The Japan Institute of Metals and Materials,2008,47,7,350-354,https://cir.nii.ac.jp/crid/1390001204055968128,https://doi.org/10.2320/materia.47.350