[1]
A. Romanov, O. Kondakova, A. Sulimov, V. Sulimov, and D. Vtyurina, “Calculation of excited states of the polycation Bi 3+ 5 by the spin-orbit configuration interaction method”, Num. Meth. Prog., vol. 12, no. 30, pp. 443–449, Nov. 2011.