@article{DE_1975_11_3_a12,
     author = {O. F. Men'shikh},
     title = {Functionally invariant solutions of second order quasilinear partial differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {533--540},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_3_a12/}
}