%0 Journal Article %A Peter J. Nicholls %T Fundmental Regions and the Type Problem for a Riemann Surface. %J Mathematische Zeitschrift %D 1980 %P 187-196 %V 174 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1980__174_173005/ %F MZ_1980__174_173005