@article{ZVMMF_1968_8_6_a21,
     author = {A. D. Sidorenko and B. L. Rozhdestvenskii},
     title = {A problem with contact discontinuity},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1352--1359},
     publisher = {mathdoc},
     volume = {8},
     number = {6},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1968_8_6_a21/}
}