@article{GDZPPN002381729,
title = {L\"osung eines speziellen Minimumproblems},
journal = {Mathematische Zeitschrift},
volume = {52},
year = {1950},
pages = {21-52},
zbl = {0040.34801},
url = {http://dml.mathdoc.fr/item/GDZPPN002381729}
}
NICKEL, K. Lösung eines speziellen Minimumproblems. Mathematische Zeitschrift, Tome 52 (1950) pp. 21-52. http://gdmltest.u-ga.fr/item/GDZPPN002381729/