@article{VMUMM_2016_1_a11,
     author = {S. D. Kovalevskaya},
     title = {Shock wave acceleration in a gravitational field. {Special} case},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {61--64},
     year = {2016},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2016_1_a11/}
}