@article{DE_2004_40_12_a12,
     author = {V. F. Volkodavov and I. N. Rodionova and S. V. Bushkov},
     title = {A {3D} analog of problem~$\mathrm M$ for a third-order hyperbolic equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1698--1700},
     publisher = {mathdoc},
     volume = {40},
     number = {12},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_12_a12/}
}