@phdthesis{BJHTUP11_1994__0365__A1_0,
     author = {Bid\'egaray, Brigitte},
     title = {Etude qualitative d'\'equations d'ondes dispersives},
     series = {Th\`eses d'Orsay},
     publisher = {Universit\'e de Paris-Sud Centre d'Orsay},
     number = {365},
     year = {1994},
     language = {fr},
     url = {http://archive.numdam.org/item/BJHTUP11_1994__0365__A1_0/}
}