%0 Journal Article %A T. V. Dudnikova %T Convergence to stationary non-equilibrium states for Klein--Gordon equations %J Izvestiya. Mathematics %D 2021 %P 932-952 %V 85 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2021_85_5_a4/ %G en %F IM2_2021_85_5_a4