TY - JOUR AU - Yu. A. Mitropol'skii AU - V. L. Kulik AU - A. I. Skrypnyk TI - Investigation of invariant toroidal manifolds of dynamical systems, and questions of automation of methods for investigating differential equations JO - Differencialʹnye uravneniâ PY - 1985 SP - 1679 EP - 1692 VL - 21 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_10_a3/ LA - ru ID - DE_1985_21_10_a3 ER -