%0 Journal Article %A O. V. Stepanova %T Some properties of level lines in univalent conformal mappings %J Sbornik. Mathematics %D 1967 %P 61-82 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1967_1_1_a3/ %G en %F SM_1967_1_1_a3