Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2007_37_1a_12, author = {M. Neagu}, title = {From first order pde-systems to harmonic maps between generalized {Lagrange} spaces}, journal = {Novi Sad Journal of Mathematics}, pages = {93-106}, publisher = {mathdoc}, volume = {37}, number = {1}, year = {2007}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2007_37_1a_12/} }
M. Neagu. From first order pde-systems to harmonic maps between generalized Lagrange spaces. Novi Sad Journal of Mathematics, Tome 37 (2007) no. 1. http://geodesic.mathdoc.fr/item/NSJOM_2007_37_1a_12/