Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1929__101_159360, author = {T. Rad\'o}, title = {\"Uber zweidimensionale regul\"are {Variationsprobleme} der {Form} ... .... {F} (p,q) dxdy = {Minimum}}, journal = {Mathematische Annalen}, pages = {620--632}, publisher = {mathdoc}, volume = {101}, year = {1929}, url = {http://geodesic.mathdoc.fr/item/MAN_1929__101_159360/} }
T. Radó. Über zweidimensionale reguläre Variationsprobleme der Form ... .... F (p,q) dxdy = Minimum. Mathematische Annalen, Tome 101 (1929), pp. 620-632. http://geodesic.mathdoc.fr/item/MAN_1929__101_159360/