TY - JOUR AU - E. M. Bogatov TI - On the development of qualitative methods for solving nonlinear equations and some consequences JO - Izvestiya VUZ. Applied Nonlinear Dynamics PY - 2019 SP - 96 EP - 114 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVP_2019_27_1_a6/ LA - ru ID - IVP_2019_27_1_a6 ER -