@article{GDZPPN002435918, title = {Symplectic Topology and Hamiltonian Dynamics.}, journal = {Mathematische Zeitschrift}, volume = {199}, year = {1988}, pages = {355-378}, zbl = {0641.53035}, url = {http://dml.mathdoc.fr/item/GDZPPN002435918} }
Hofer, H.; Ekeland, I. Symplectic Topology and Hamiltonian Dynamics.. Mathematische Zeitschrift, Tome 199 (1988) pp. 355-378. http://gdmltest.u-ga.fr/item/GDZPPN002435918/