@conference{Bou-Fli-2013,
    author={Laurent Bourgeois and Sonia Fliss },
    title={On sampling methods to identify defects in a periodic 
           waveguide from far field data },
    publisher={Inverse Problems: Scattering, Tomography and Parameter 
           Identification, Conference honoring Andreas Kirsch for his 
           60th birthday, Bad Herrenalb - Germany, 8-11/4/2013 },
    year={2013 },
    month={4},
}