@article{VMUMM_1985_6_a11,
     author = {A. N. Bogdanov},
     title = {Asymptotic laws of the propagation of weak non-linear waves},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {70--73},
     year = {1985},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_6_a11/}
}