(1)
M. M. Bogdan and O. V. Charkina, Structure of soliton bound states in the parametrically driven and damped nonlinear systems, Low Temp. Phys. 48, 1062–1070, (2022) [Fiz. Nyzk. Temp. 48, 1201–1210, (2022)] DOI: https://doi.org/10.1063/10.0015116.