TY - JOUR AU - M. Imanaliev AU - P. S. Pankov TI - Singularly perturbed systems of ordinary differential equations in JO - Doklady Akademii Nauk PY - 1988 SP - 546 EP - 549 VL - 303 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1988_303_3_a6/ LA - ru ID - DAN_1988_303_3_a6 ER -