@article{COMIM_2010__18_1_a1, author = {Saunders, David}, title = {Some geometric aspects of the calculus of variations in several independent variables}, journal = {Communications in Mathematics}, pages = {3--19}, publisher = {mathdoc}, volume = {18}, number = {1}, year = {2010}, mrnumber = {2848502}, zbl = {1235.58014}, language = {en}, url = {http://geodesic.mathdoc.fr/item/COMIM_2010__18_1_a1/} }