@article{AIHPA_1982__36_1_1_0,
     author = {Codegone, Marco},
     title = {On the acoustic impedence condition for ondulated boundary},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {1--18},
     publisher = {Gauthier-Villars},
     volume = {36},
     number = {1},
     year = {1982},
     mrnumber = {653015},
     zbl = {0506.35023},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1982__36_1_1_0/}
}