TY - JOUR AU - P. Cartier TI - Singular perturbations of ordinary differential equations and nonstandard analysis JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1984 VL - 39 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1984_39_2_a46/ LA - ru ID - RM_1984_39_2_a46 ER -