@article{IM_1991__103_1_143860,
     author = {Tudor Ratiu and Yakov Eliashberg},
     title = {The diameter of the symplectomorphism group is infinite.},
     journal = {Inventiones mathematicae},
     pages = {327--340},
     publisher = {mathdoc},
     volume = {103},
     number = {1},
     year = {1991},
     zbl = {0725.58006},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__103_1_143860/}
}