@article{BSMF_2002__130_4_603_0,
     author = {Gr\'ebert, Beno{\^\i}t and Kappeler, Thomas},
     title = {Symmetries of the nonlinear {Schr\"odinger} equation},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {603--618},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {130},
     number = {4},
     year = {2002},
     doi = {10.24033/bsmf.2432},
     mrnumber = {1947455},
     zbl = {1044.35088},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.2432/}
}