%0 Journal Article %A A. A. Kosmodem'yanskii (Jr.) %T Isoperimetric estimates of the second boundary value problem for the Poisson equation %J Matematičeskie zametki %D 1991 %P 48-53 %V 50 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1991_50_5_a6/ %G ru %F MZM_1991_50_5_a6