@article{SM_1970_11_2_a2,
     author = {S. I. Pokhozhaev},
     title = {On~the eigenfunctions of quasilinear elliptic problems},
     journal = {Sbornik. Mathematics},
     pages = {171--188},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_11_2_a2/}
}