@article{GDZPPN002407116,
title = {Total Convexity for Parametric Multiple Integrals in the Calculus of Variations.},
journal = {Mathematische Zeitschrift},
volume = {114},
year = {1970},
pages = {205-214},
zbl = {0194.42502},
url = {http://dml.mathdoc.fr/item/GDZPPN002407116}
}
Martin, Duncan H. Total Convexity for Parametric Multiple Integrals in the Calculus of Variations.. Mathematische Zeitschrift, Tome 114 (1970) pp. 205-214. http://gdmltest.u-ga.fr/item/GDZPPN002407116/