@article{TSG_1985-1986__4__127_0,
     author = {Bardos, C. and Lebeau, G. and Rauch, J.},
     title = {P\^oles de la diffusion acoustique et singularit\'es {Gevrey} 3},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {127--130},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {4},
     year = {1985-1986},
     mrnumber = {1046066},
     zbl = {1002.58514},
     language = {fr},
     url = {http://www.numdam.org/item/TSG_1985-1986__4__127_0/}
}