EXCHANGE POLARIZATION OF THE 3 d-SHELL AND ISOTOPE SHIFT OF THE LEVELS Cu II 3 d9 4 s 1D AND 3D M. ELBEL et H. HÜHNERMANNJ. Phys. Colloques, 30 C1 (1969) C1-41-C1-47DOI: https://doi.org/10.1051/jphyscol:1969111
