@article{DAN_1975_223_4_a11,
     author = {V. A. Suchkov},
     title = {Double waves of plane flows having variable entropy},
     journal = {Doklady Akademii Nauk},
     pages = {816--818},
     publisher = {mathdoc},
     volume = {223},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_4_a11/}
}