@article{MAN_1919__79_158805,
     author = {C. Carath\'eodory},
     title = {\"Uber die {Studysche} {Rundungsschranke.}},
     journal = {Mathematische Annalen},
     pages = {402--402},
     year = {1919},
     volume = {79},
     zbl = {47.0327.05},
     url = {http://geodesic.mathdoc.fr/item/MAN_1919__79_158805/}
}