@article{MZ_1943__49_169053,
     author = {A. Dinghas},
     title = {\"Uber eine isoperimetrische {Aufgabe} von {Erhardt} {Schmidt,} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {734--791},
     publisher = {mathdoc},
     volume = {49},
     year = {1943},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1943__49_169053/}
}