Citation: Sasaki, Satoshi; Fujino, Kiyoshi; Tak\'euchi, Yoshio (1979). X-Ray Determination of Electron-Density Distributions in Oxides, MgO, MnO, CoO, and NiO, and Atomic Scattering Factors of their Constituent Atoms. Proceedings of the Japan Academy, Series B: Physical and Biological Sciences, 55, pp. 43-48.