@article{CRMATH_2006__342_4_243_0,
     author = {Bourdaud, G\'erard},
     title = {Une propri\'et\'e de composition dans l'espace $ {H}^{s}$ {(II)}},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {243--246},
     publisher = {Elsevier},
     volume = {342},
     number = {4},
     year = {2006},
     doi = {10.1016/j.crma.2005.12.002},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.12.002/}
}