%0 Journal Article %A S. I. Pokhozhaev %T On the Absence of Positive Solutions of Elliptic Equations in Plane Unbounded Domains %J Matematičeskie zametki %D 2009 %P 261-272 %V 85 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2009_85_2_a8/ %G ru %F MZM_2009_85_2_a8