@article{DAN_1957_113_3_a5,
     author = {O. A. Oleinik and N. D. Vvedenskaya},
     title = {The solution of {Cauchy} problem and boundary value problem for nonlinear equations in the discontinuous functions class},
     journal = {Doklady Akademii Nauk},
     pages = {503--506},
     publisher = {mathdoc},
     volume = {113},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_113_3_a5/}
}