@article{VMUMM_1994_5_a18,
     author = {A. \`E. Rakhimov},
     title = {Qualitative model of super deep penetration},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {72--74},
     year = {1994},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_5_a18/}
}