@article{DAN_1972_207_1_a12,
     author = {N. A. Luk'yanov},
     title = {Solving direct problem of mixed sub- and supersonic gas flow in a nozzle of finite length},
     journal = {Doklady Akademii Nauk},
     pages = {56--59},
     publisher = {mathdoc},
     volume = {207},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_207_1_a12/}
}