TY - JOUR AU - V. V. Strygin AU - V. A. Sobolev AU - E. Ya. Gorelova AU - È. M. Fridman TI - Integral manifolds of singularly perturbed systems and some of their applications JO - Differencialʹnye uravneniâ PY - 1985 SP - 1723 EP - 1726 VL - 21 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_10_a11/ LA - ru ID - DE_1985_21_10_a11 ER -