3d-4s and 3d-4p electronic transitions in M2+ : NaF AND M2+ : KMgF3 (Μ = V, Cr, and Mn). Results of a cluster-model calculationM. Flórez, M. Bermejo, V. Luaña, E. Francisco, J.M. Recio and L. PueyoJ. Chim. Phys., 84 (1987) 855-861DOI: https://doi.org/10.1051/jcp/1987840855