@article{MMO_1956_5_a9,
     author = {O. A. Oleinik},
     title = {The problem of {Cauchy} for non-linear differential equations of the first order with discontinuous initial conditions},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {433--454},
     publisher = {mathdoc},
     volume = {5},
     year = {1956},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1956_5_a9/}
}