@article{EP_2013_39_a0,
     author = {Mohamed Belhaq},
     title = {Foreword},
     journal = {ESAIM. Proceedings},
     pages = {I--I},
     year = {2013},
     volume = {39},
     doi = {10.1051/proc/20133900f},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc/20133900f/}
}