TY - JOUR AU - A. V. Arutyunov AU - S. E. Zhukovskii TI - Variational Principles in Nonlinear Analysis and Their Generalization JO - Matematičeskie zametki PY - 2018 SP - 948 EP - 954 VL - 103 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2018_103_6_a12/ LA - ru ID - MZM_2018_103_6_a12 ER -