@article{DE_1974_10_9_a12,
     author = {Ya. T. Sultanaev},
     title = {The asymptotic behavior of the spectrum of a differential operator in a space of vector-valued functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1673--1683},
     publisher = {mathdoc},
     volume = {10},
     number = {9},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_9_a12/}
}