@article{MZ_1974__139_172120,
     author = {Claus Gerhardt},
     title = {Existence, {Regularity,} and {Boundary} {Behaviour} of {Generalized} {Surfaces} of {Prescribed} {Mean} {Curvature.}},
     journal = {Mathematische Zeitschrift},
     pages = {173--198},
     publisher = {mathdoc},
     volume = {139},
     year = {1974},
     zbl = {0316.49005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__139_172120/}
}