TY - JOUR AU - V. M. Anikin TI - > of Saratov University Department of Physics and Mathematics. 1917--1945 JO - Izvestiya VUZ. Applied Nonlinear Dynamics PY - 2018 SP - 5 EP - 19 VL - 26 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVP_2018_26_6_a1/ LA - ru ID - IVP_2018_26_6_a1 ER -