%0 Journal Article %A D. S. Telyakovskii %T A Sufficient Condition for the Harmonicity of Functions of Two Variables %J Matematičeskie zametki %D 2009 %P 628-640 %V 86 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2009_86_4_a13/ %G ru %F MZM_2009_86_4_a13