@article{CMH_1978__53_139732,
     author = {Augustin Banyaga},
     title = {Sur la structure du groupe des diff\'eomorphismes qui pr\'eservent une forme symplectique.},
     journal = {Commentarii mathematici Helvetici},
     pages = {174--227},
     publisher = {mathdoc},
     volume = {53},
     year = {1978},
     zbl = {0393.58007},
     url = {http://geodesic.mathdoc.fr/item/CMH_1978__53_139732/}
}