%0 Journal Article
%A Ch. Pommerenke
%T On the Boundary Derivative for Univalent Functions.
%J Mathematische Annalen
%D 1986
%P 499-504
%V 276
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1986__276_164214/
%F MAN_1986__276_164214