@article{DE_1979_15_4_a4,
     author = {I. V. Mel'nikova and V. M. Mornova},
     title = {The {Cauchy} problem and the method of quasireversibility for second-order equations in a {Banach} space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {614--618},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_4_a4/}
}