@phdthesis{BJHTUP11_1999__0565__P0_0,
     author = {Tzvetkov, Nikolay},
     title = {Sur le probl\`eme de {Cauchy} pour des \'equations de type {KP}},
     series = {Th\`eses d'Orsay},
     publisher = {Universit\'e de Paris-Sud Centre d'Orsay},
     number = {565},
     year = {1999},
     language = {fr},
     url = {http://archive.numdam.org/item/BJHTUP11_1999__0565__P0_0/}
}