%0 Journal Article %A S. A. Copanev %T A note on the curvature of the level line under the conformal mapping %J Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika %D 2013 %P 34-36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTGU_2013_3_a3/ %G ru %F VTGU_2013_3_a3