@article{DAN_1980_254_1_a12,
     author = {I. A. Znamenskaya and F. V. Shugaev},
     title = {On damping oscillations of shock wave after its reflection from the body with a hollow},
     journal = {Doklady Akademii Nauk},
     pages = {57--59},
     publisher = {mathdoc},
     volume = {254},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_254_1_a12/}
}