@article{Bam-Jol-Ker-1991,
    author={Alain Bamberger and Patrick Joly and Michel Kern },
    title={Mathematical Analysis of the propagation of elastic surface 
           waves at the exterior of a cylindrical cavity of arbitrary 
           cross-section },
    journal={M2AN , },
    year={1991 },
    volume={25, 1 },
    pages={1--30},
}