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@article{ARM_1988__24_4_a2, author = {Anderson, Ian M.}, title = {Aspects of the inverse problem to the calculus of variations}, journal = {Archivum mathematicum}, pages = {181--202}, publisher = {mathdoc}, volume = {24}, number = {4}, year = {1988}, mrnumber = {983236}, zbl = {0674.58017}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1988__24_4_a2/} }
Anderson, Ian M. Aspects of the inverse problem to the calculus of variations. Archivum mathematicum, Tome 24 (1988) no. 4, pp. 181-202. http://geodesic.mathdoc.fr/item/ARM_1988__24_4_a2/