%0 Journal Article %A S. L. Berberian %T Refinement of the Plessner theorem and Plessner points for arbitrary harmonic functions %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2017 %P 58-61 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2017_4_a9/ %G ru %F VMUMM_2017_4_a9