@article{DAN_1983_273_6_a5,
     author = {F. G. Maksudov and K. Ya. Leonov},
     title = {On the smoothness of solutions to the initial-boundary value problems for a class of semilinear hyperbolic equations},
     journal = {Doklady Akademii Nauk},
     pages = {1308--1309},
     publisher = {mathdoc},
     volume = {273},
     number = {6},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_273_6_a5/}
}