TY - JOUR AU - A. M. Nurmatov TI - On the exponential indices of a triangular system and its diagonal approximation JO - Differencialʹnye uravneniâ PY - 1987 SP - 814 EP - 818 VL - 23 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1987_23_5_a9/ LA - ru ID - DE_1987_23_5_a9 ER -