@article{1077492242,
author = {McShane, E. J.},
title = {Necessary conditions in generalized-curve problems of the
calculus of variations},
journal = {Duke Math. J.},
volume = {6},
number = {1},
year = {1940},
pages = { 1-27},
language = {en},
url = {http://dml.mathdoc.fr/item/1077492242}
}
McShane, E. J. Necessary conditions in generalized-curve problems of the
calculus of variations. Duke Math. J., Tome 6 (1940) no. 1, pp. 1-27. http://gdmltest.u-ga.fr/item/1077492242/