%0 Journal Article
%A Wolfram Koepf
%T On Nonvanishing Univalent Functions with Real Coefficients.
%J Mathematische Zeitschrift
%D 1986
%P 575-580
%V 192
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1986__192_173757/
%F MZ_1986__192_173757