%0 Journal Article %A S. I. Pokhozhaev %T Eigenfunctions of the equation $\Delta u+\lambda f(u)=0$ %J Doklady Akademii Nauk %D 1965 %P 36-39 %V 165 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_165_1_a9/ %G ru %F DAN_1965_165_1_a9