@article{SEMR_2021_18_1_a22,
     author = {A. I. Kozhanov},
     title = {Initial-boundary value problems for degenerate hyperbolic equations},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {43--53},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2021_18_1_a22/}
}