@article{M2AN_2012__46_1_145_0,
     author = {Duch\^ene, Vincent},
     title = {Boussinesq/Boussinesq systems for internal waves with a free surface, and the {KdV} approximation},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {145--185},
     publisher = {EDP-Sciences},
     volume = {46},
     number = {1},
     year = {2012},
     doi = {10.1051/m2an/2011037},
     mrnumber = {2846370},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2011037/}
}