@article{M2AN_2007__41_2_187_0,
     author = {Lions, P.-L.},
     title = {Preface},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {187--188},
     publisher = {EDP-Sciences},
     volume = {41},
     number = {2},
     year = {2007},
     doi = {10.1051/m2an:2007025},
     mrnumber = {2339624},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an:2007025/}
}