@article{AFST_2001_6_10_2_313_0,
     author = {Brahim Hajouj and Monique Madaune-Tort},
     title = {Perturbations singuli\`eres pour une \'equation hyperbolique d\'eg\'en\'er\'ee},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {313--345},
     year = {2001},
     publisher = {Universit\'e Paul Sabatier},
     address = {Toulouse},
     volume = {6e s{\'e}rie, 10},
     number = {2},
     doi = {10.5802/afst.994},
     mrnumber = {1896185},
     zbl = {1027.35010},
     language = {fr},
     url = {https://afst.centre-mersenne.org/articles/10.5802/afst.994/}
}