@article{DE_1968_4_10_a4,
     author = {M. B. Kudaev},
     title = {Concerning boundedness criteria for solutions of the equation $A_0(t)x''+A_1(t)x'+A_2(t)x=0$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1801--1813},
     publisher = {mathdoc},
     volume = {4},
     number = {10},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_10_a4/}
}