“…A curvature estimate for surface graphs of prescribed mean curvature and theorems of Bernstein type for minimal graphs can be found for example in Bergner and Fröhlich [4]. Curvature estimates resting upon methods of Schoen, Simon, Yau [47] and Ecker, Huisken [24], [25] can be found in Wang [55], [56], Fröhlich and Winklmann [31], or Xin [60].…”