@article{VMUMM_1983_3_a13,
     author = {\`E. V. Lenskii},
     title = {Simple waves in a nonlinearly elastic medium},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {80--86},
     publisher = {mathdoc},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1983_3_a13/}
}