@article{DAN_1974_218_6_a4,
     author = {G. V. Belyakov},
     title = {Impact strain of granular media},
     journal = {Doklady Akademii Nauk},
     pages = {1280--1282},
     publisher = {mathdoc},
     volume = {218},
     number = {6},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_218_6_a4/}
}