@inproceedings{Bec-Bon-2003,
    author={Éliane Bécache and Anne-Sophie Bonnet-BenDhia },
    title={PMLs for the numerical simulation of harmonic diffracted waves 
           in an elastic plate },
    organization={World Congress on Ultrasonics, Paris },
    year={2003 },
    pages={1019--1022},
}