@article{DE_1991_27_6_a28,
     author = {\`E. M. Aksen'},
     title = {The quasi-inversion method for some hyperbolic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1089--1092},
     publisher = {mathdoc},
     volume = {27},
     number = {6},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_6_a28/}
}