@article{01702483,
title = {Solutions of DEs and PDEs as potential maps using first order Lagrangians.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {6},
year = {2001},
pages = {93-108},
zbl = {1183.34011},
language = {en},
url = {http://dml.mathdoc.fr/item/01702483}
}
Udrişte, Constantin. Solutions of DEs and PDEs as potential maps using first order Lagrangians.. Balkan Journal of Geometry and its Applications (BJGA), Tome 6 (2001) pp. 93-108. http://gdmltest.u-ga.fr/item/01702483/