@article{AMBP_2000__7_1_1_0,
     author = {Hajouj, Brahim},
     title = {Perturbations singuli\`eres d'\'equations hyperboliques du second ordre non lin\'eaires},
     journal = {Annales math\'ematiques Blaise Pascal},
     pages = {1--22},
     publisher = {Laboratoires de Math\'ematiques Pures et Appliqu\'ees de l'Universit\'e Blaise Pascal},
     volume = {7},
     number = {1},
     year = {2000},
     mrnumber = {1769979},
     zbl = {0960.35070},
     language = {fr},
     url = {http://archive.numdam.org/item/AMBP_2000__7_1_1_0/}
}