@article{DE_1995_31_10_a1,
     author = {S. M. Artem'eva},
     title = {Asymptotic invariants of multidimensional linear differential equations with functionally-commutative operators},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1617--1621},
     publisher = {mathdoc},
     volume = {31},
     number = {10},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_10_a1/}
}