Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Uzumaki Takuya and Kamehara Nobuo and Niwa Koichi,"Crystal Structure and Madelung Potential in R2−xCexCuO4−δ (R=Pr, Nd, Sm, Eu and Gd) System",Japanese Journal of Applied Physics,,The Japan Society of Applied Physics,1991,30,6,L981-L984,https://cir.nii.ac.jp/crid/1570854177349743872,