@article{urn:eudml:doc:38664, title = {The inverse problem for flat kinetic minus potencial Lagrangians.}, journal = {Extracta Mathematicae}, volume = {16}, year = {2001}, pages = {241-248}, zbl = {1048.70007}, mrnumber = {MR1880109}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:38664} }
Thompson, G.; Prince, G. E. The inverse problem for flat kinetic minus potencial Lagrangians.. Extracta Mathematicae, Tome 16 (2001) pp. 241-248. http://gdmltest.u-ga.fr/item/urn:eudml:doc:38664/