%0 Journal Article %A Darryl McCullough %T Minimal genus of abelian actions on Klein surfaces with boundary. %J Mathematische Zeitschrift %D 1990 %P 421-436 %V 205 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1990__205_3_174185/ %F MZ_1990__205_3_174185