@article{AIHPA_1999__70_2_147_0,
     author = {Bethuel, Fabrice and Saut, Jean-Claude},
     title = {Travelling waves for the {Gross-Pitaevskii} equation {I}},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {147--238},
     publisher = {Gauthier-Villars},
     volume = {70},
     number = {2},
     year = {1999},
     mrnumber = {1669387},
     zbl = {0933.35177},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1999__70_2_147_0/}
}