%0 Journal Article %A A. L. Treskunov %T On an extention of the Virtinger's inequality and its application to the study of the elliptic equations %J Zapiski Nauchnykh Seminarov POMI %D 1985 %P 184-187 %V 147 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1985_147_a14/ %G ru %F ZNSL_1985_147_a14