@article{102245, author = {Alois \v Svec}, title = {Equivalence problem for Lagrangians}, journal = {Czechoslovak Mathematical Journal}, volume = {38}, year = {1988}, pages = {486-492}, zbl = {0682.58018}, mrnumber = {950303}, language = {en}, url = {http://dml.mathdoc.fr/item/102245} }
Švec, Alois. Equivalence problem for Lagrangians. Czechoslovak Mathematical Journal, Tome 38 (1988) pp. 486-492. http://gdmltest.u-ga.fr/item/102245/
Differential Geometric Methods Interfacing Control Theory, In "Differen- tial Geometric Control Theory", Progress in Math. 27, Birkhauser, Boston, 1983, 117-180. (1983) | MR 0708501 | Zbl 0522.49028