TY - JOUR AU - A. B. Vasil'eva AU - E. K. Kuchik TI - A singularly perturbed system of two first order partial differential equations in a conditionally stable case JO - Differencialʹnye uravneniâ PY - 1987 SP - 344 EP - 345 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1987_23_2_a19/ LA - ru ID - DE_1987_23_2_a19 ER -