%0 Journal Article
%A Neal Brand
%T Necessary Conditions for the Existence of Branched Coverings.
%J Inventiones mathematicae
%D 1979
%P 1-10
%V 54
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1979__54_142668/
%F IM_1979__54_142668