@article{GDZPPN002268027,
title = {Ein Minimumproblem f\"ur Ovale},
journal = {Mathematische Annalen},
volume = {84},
year = {1921},
pages = {311-320},
zbl = {48.0838.02},
url = {http://dml.mathdoc.fr/item/GDZPPN002268027}
}
Pál, J. Ein Minimumproblem für Ovale. Mathematische Annalen, Tome 84 (1921) pp. 311-320. http://gdmltest.u-ga.fr/item/GDZPPN002268027/