Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KOSEKI Ken'ichi,Basic of Printing Technology —Letterpress Printing and Flexographic Printing—,NIHON GAZO GAKKAISHI (Journal of the Imaging Society of Japan),13444425,The Imaging Society of Japan,2014,53,3,231-234,https://cir.nii.ac.jp/crid/1390282679075087872,https://doi.org/10.11370/isj.53.231