@article{DE_1984_20_1_a12,
     author = {N. I. Popivanov},
     title = {Boundary value problems for hyperbolic-parabolic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {104--115},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_1_a12/}
}