%0 Journal Article %A A. A. Belyaev %T The mean value theorem for harmonic functions in a domain of Hilbert space %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1982 %P 32-35 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1982_5_a8/ %G ru %F VMUMM_1982_5_a8