@article{DE_1991_27_3_a11,
     author = {E. A. Barkova and P. P. Zabreiko},
     title = {The {Cauchy} problem for higher-order differential equations with deteriorating operators},
     journal = {Differencialʹnye uravneni\^a},
     pages = {472--478},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_3_a11/}
}