%0 Journal Article %A Anderson, Ian M. %T Aspects of the inverse problem to the calculus of variations %J Archivum mathematicum %D 1988 %P 181-202 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1988__24_4_a2/ %G en %F ARM_1988__24_4_a2