@article{MM2_1990__66_1_155462, author = {Larry Bates}, title = {A {Symplectic} {Rigidity} {Theorem.}}, journal = {Manuscripta mathematica}, pages = {109--112}, publisher = {mathdoc}, volume = {66}, number = {1}, year = {1990}, zbl = {0682.53038}, url = {http://geodesic.mathdoc.fr/item/MM2_1990__66_1_155462/} }