%0 Journal Article %A Paul Gauduchon %A Andrew Balas %T Any Hermitian Metric of Constant Non-Positive (Hermitian) Holomorphic Sectional Curvature on a Compact Complex Surface is Kähler. %J Mathematische Zeitschrift %D 1985 %P 39-44 %V 190 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1985__190_173607/ %F MZ_1985__190_173607