Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KEIHACHIRO NAKAJIMA,パピルス 鉄と紙,JAPAN TAPPI JOURNAL,0022815X,JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY,2007,61,2,208-210,https://cir.nii.ac.jp/crid/1390001206515758976,https://doi.org/10.2524/jtappij.61.208