Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shimizu Mikio,Two Centre Coulomb Potential Approximation,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1963,18,6,811-819,https://cir.nii.ac.jp/crid/1390282679170180352,https://doi.org/10.1143/jpsj.18.811