TY - JOUR AU - A. I. Denisov AU - I. V. Denisov TI - Nonlinear method of angular boundary functions in problems with cubic nonlinearities JO - Čebyševskij sbornik PY - 2023 SP - 27 EP - 39 VL - 24 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2023_24_1_a2/ LA - ru ID - CHEB_2023_24_1_a2 ER -