@article{DAN_1990_314_3_a9,
     author = {S. I. Pokhozhaev},
     title = {On classes of positivity of elliptic operators in $\mathbf{R}^N$ with a supercritical nonlinearity index},
     journal = {Doklady Akademii Nauk},
     pages = {558--561},
     publisher = {mathdoc},
     volume = {314},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_3_a9/}
}