%0 Journal Article %A V. G. Maz'ya %T On Beurling's theorem on the minimum principle for positive harmonic functions %J Zapiski Nauchnykh Seminarov POMI %D 1972 %P 76-90 %V 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1972_30_a5/ %G ru %F ZNSL_1972_30_a5