%0 Journal Article %A Wirths, Karl-Joachim %T The Koebe Domain for Concave Univalent Functions %J Serdica Mathematical Journal %D 2003 %P 355-360 %V 29 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2003_29_4_a3/ %G en %F SMJ2_2003_29_4_a3