%0 Journal Article %A A. S. Fokht %T An integral estimate of the derivatives of a harmonic function of an $N$-dimensional region in the $L_p$ metric, and some %J Differencialʹnye uravneniâ %D 1970 %P 1329-1332 %V 6 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1970_6_7_a26/ %G ru %F DE_1970_6_7_a26