%0 Journal Article
%A Lars L. Ahlfors
%T Open Riemann Surfaces and Extremal Problems on Compact Subregions.
%J Commentarii mathematici Helvetici
%D 1950
%P 100-134
%V 24
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1950__24_139001/
%F CMH_1950__24_139001