@article{DAN_1960_135_6_a9,
     author = {O. A. Ladyzhenskaya and N. N. Ural'tseva},
     title = {A variational problem for quasilinear elliptic equations with many independent variables},
     journal = {Doklady Akademii Nauk},
     pages = {1330--1333},
     publisher = {mathdoc},
     volume = {135},
     number = {6},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_6_a9/}
}