@article{DAN_1967_177_2_a4,
     author = {N. N. Kuznetsov},
     title = {A weak solution of the {Cauchy} problem for a first order equation with two independent variables},
     journal = {Doklady Akademii Nauk},
     pages = {268--271},
     publisher = {mathdoc},
     volume = {177},
     number = {2},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_177_2_a4/}
}