2 citations to https://www.mathnet.ru/eng/phpnl9

1. N. N. Bogolyubov, Jr., A. V. Soldatov, “Resonance fluorescence of polar quantum systems in a bichromatic field”, Theoret. and Math. Phys., 217:3 (2023), 1827–1841          
2. N. N. Bogolyubov (Jr.), A. V. Soldatov, “Optoelectronic transistor effect in a polar quantum system driven by a trichromatic field”, Phys. Part. Nucl. Lett., 54:6 (2023), 1132–1141