Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Konishi Yoshiaki and Hada Hiroshi and Tamura Mikio,The Absorption Spectra of Some Metal High Molecular Polycarboxylates and the Changes of the Spectra Produced by the Irradiation of Ultraviolet Rays,Nippon kagaku zassi,0369-5387,The Chemical Society of Japan,1969,90,10,992-996,https://cir.nii.ac.jp/crid/1390282680126320896,https://doi.org/10.1246/nikkashi1948.90.10_992