WAVELENGTHS AND ENERGY LEVELS FOR n = 3 - 3 TRANSITIONS IN F-LIKE IONS : Cr XVI, Fe XVIII, Ni XX AND Cu XXI J. P. BUCHET et M. C. BUCHET-POULIZACJ. Phys. Colloques, 49 C1 (1988) C1-255-C1-258DOI: https://doi.org/10.1051/jphyscol:1988154
