TY - JOUR AU - S. M. Artem'eva TI - Asymptotic invariants of multidimensional linear differential equations with functionally-commutative operators JO - Differencialʹnye uravneniâ PY - 1995 SP - 1617 EP - 1621 VL - 31 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1995_31_10_a1/ LA - ru ID - DE_1995_31_10_a1 ER -