@article{DE_1991_27_9_a20,
     author = {S. Iskandarov},
     title = {Modification of {V.} {Volterra's} method for studying the asymptotic behavior of solutions of a second-order linear equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1638--1639},
     publisher = {mathdoc},
     volume = {27},
     number = {9},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_9_a20/}
}