Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MIZUGUCHI Jin,Crystal and Electronic Structures of Diketopyrrolopyrrole Pigments,Journal of the Japan Society of Colour Material,0010180X,Japan Society of Colour Material,1999,72,7,432-440,https://cir.nii.ac.jp/crid/1390282680446853120,https://doi.org/10.4011/shikizai1937.72.432