@article{CRMATH_2014__352_7-8_597_0,
     author = {Ambrose, David M. and Wright, J. Douglas},
     title = {Non-existence of small-amplitude doubly periodic waves for dispersive equations},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {597--602},
     publisher = {Elsevier},
     volume = {352},
     number = {7-8},
     year = {2014},
     doi = {10.1016/j.crma.2014.05.003},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2014.05.003/}
}