Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hangai Yoshihiko and Kitahara Soichiro and Kuwazuru Osamu and Yoshikawa Nobuhiro,Fractal Analysis of Porosity Area Distribution in Die Casting Using X-ray CT Image,Journal of Japan Foundry Engineering Society,13420429,Japan Foundry Engineering Society,2008,80,5,284-289,https://cir.nii.ac.jp/crid/1390282681484880896,https://doi.org/10.11279/jfes.80.284