%0 Journal Article %A S. V. Shvedenko %T On Equivalent Definitions of Connectivity of an Open Set and on Goursat Formula which Restoresan Analytic Function via its Real Part %J Matematičeskoe obrazovanie %D 2012 %P 66-70 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2012_62_2_a5/ %G ru %F MO_2012_62_2_a5