@article{AM2_1971__7_136232, author = {E.T. DAVIES}, title = {A {Geometrical} {Theory} of {Multiple} {Integral} {Problems} in the {Calculs} of {Variations} {(Short} {Communication)}}, journal = {Aequationes mathematicae}, pages = {114--114}, publisher = {mathdoc}, volume = {7}, year = {1971}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AM2_1971__7_136232/} }