@phdthesis{BJHTUP11_1990__0278__P0_0,
     author = {Soyeur, Alain},
     title = {\'Etude math\'ematique d'\'equations aux d\'eriv\'ees partielles de la physique \`a valeurs dans une vari\'et\'e},
     series = {Th\`eses d'Orsay},
     publisher = {Universit\'e de Paris-Sud Centre d'Orsay},
     number = {278},
     year = {1990},
     language = {fr},
     url = {http://www.numdam.org/item/BJHTUP11_1990__0278__P0_0/}
}