@article{GDZPPN002031116,
title = {Tensorial Euler-Lagrange expressions and conservation laws.},
journal = {Aequationes mathematicae},
volume = {18},
year = {1978},
pages = {255-291},
zbl = {0418.49041},
url = {http://dml.mathdoc.fr/item/GDZPPN002031116}
}
Anderson, Ian M. Tensorial Euler-Lagrange expressions and conservation laws.. Aequationes mathematicae, Tome 18 (1978) pp. 255-291. http://gdmltest.u-ga.fr/item/GDZPPN002031116/