TY - JOUR AU - M. B. Sevryuk TI - On~invariant tori of reversible systems in the neighbourhood of an equilibrium position JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1987 SP - 147 EP - 148 VL - 42 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1987_42_4_a7/ LA - en ID - RM_1987_42_4_a7 ER -