@article{AIHPC_2007__24_5_741_0,
     author = {El Hamidi, A. and Rakotoson, J. M.},
     title = {Extremal functions for the anisotropic {Sobolev} inequalities},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {741--756},
     publisher = {Elsevier},
     volume = {24},
     number = {5},
     year = {2007},
     doi = {10.1016/j.anihpc.2006.06.003},
     mrnumber = {2348050},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2006.06.003/}
}