@article{GDZPPN002026023,
title = {Non-Quadratic Variational Problems},
journal = {Aequationes mathematicae},
volume = {7},
year = {1971},
pages = {199-210},
zbl = {0232.49011},
url = {http://dml.mathdoc.fr/item/GDZPPN002026023}
}
HADELER, K.P. Non-Quadratic Variational Problems. Aequationes mathematicae, Tome 7 (1971) pp. 199-210. http://gdmltest.u-ga.fr/item/GDZPPN002026023/