@article {2007, title = {Parametrized curves in Lagrange Grassmannians}, journal = {C. R. Math. 345 (2007) 647-652}, number = {arXiv.org;0708.1100v1}, year = {2007}, doi = {10.1016/j.crma.2007.10.034}, url = {http://hdl.handle.net/1963/2560}, author = {Igor Zelenko and Li Chengbo} }