%0 Journal Article
%A Edgar Reich
%A Kurt Strebel
%T On the Extremality of Certain Teichmüller Mappings.
%J Commentarii mathematici Helvetici
%D 1970
%P 353-362
%V 45
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1970__45_139444/
%F CMH_1970__45_139444