@article{MZ_1938__43_168757,
     author = {Dr. H., Freiburg i. Br., Ludwi Gericke},
     title = {\"Uber ein {Konvexit\"atskriterium}},
     journal = {Mathematische Zeitschrift},
     pages = {110--112},
     publisher = {mathdoc},
     volume = {43},
     year = {1938},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1938__43_168757/}
}