@article{MZ_1969__112_171222,
     author = {James Serrin},
     title = {On {Surfaces} of {Consteant} {Mean} {Curvature} which {Span} a {Given} {Space} {Curve.}},
     journal = {Mathematische Zeitschrift},
     pages = {77--88},
     publisher = {mathdoc},
     volume = {112},
     year = {1969},
     zbl = {0182.24001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__112_171222/}
}