@article{VMUMM_1985_3_a11,
     author = {E. A. Sagomonyan},
     title = {The problem of punching of an obstacle by an elasto-plastic bullet},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {52--56},
     publisher = {mathdoc},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_3_a11/}
}