著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Naohisa Komatsu and Hideyoshi Tominaga,A proposal on digital watermark in document image communication and its application to realizing a signature,Electronics and Communications in Japan (Part I: Communications),8756-6621,Wiley,1990-05,73,5,22-33,https://cir.nii.ac.jp/crid/1361978698483541760,https://doi.org/10.1002/ecja.4410730503