2011. Spectra and Oscillator Strengths of $d$-$d$ and $d$-$p$ Transitions for Cobalt-Like $Cd^{21+}$ Ion. Journal of Atomic and Molecular Sciences. 2, 3 (Feb. 2011), 241–246. DOI:https://doi.org/10.4208/jams.111910.122010a.