%0 Journal Article %A A. I. Denisov %A I. V. Denisov %T Nonlinear method of angular boundary functions in problems with cubic nonlinearities %J Čebyševskij sbornik %D 2023 %P 27-39 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2023_24_1_a2/ %G ru %F CHEB_2023_24_1_a2