@article{AIHPC_2006__23_1_127_0,
     author = {Ancona, Alano},
     title = {Sur une question de {H.} {Brezis,} {M.} {Marcus} et {A.} {C.} {Ponce}},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {127--133},
     publisher = {Elsevier},
     volume = {23},
     number = {1},
     year = {2006},
     doi = {10.1016/j.anihpc.2005.02.004},
     mrnumber = {2194584},
     zbl = {1091.31007},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2005.02.004/}
}