@article{DE_2006_42_8_a7,
     author = {N. L. La\v{z}eti\'c},
     title = {On the classical solvability of the mixed problem for a second-order one-dimensional hyperbolic equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1072--1077},
     publisher = {mathdoc},
     volume = {42},
     number = {8},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_8_a7/}
}