@article{DAN_1960_135_5_a14,
     author = {V. A. Smirnov},
     title = {Interaction of a simple wave with a contact discontinuity},
     journal = {Doklady Akademii Nauk},
     pages = {1076--1078},
     year = {1960},
     volume = {135},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_5_a14/}
}