@conference{Bon-Dur-Jol-2009,
    author={Anne-Sophie Bonnet-BenDhia and Marc Duruflé and Patrick Joly },
    title={Stability Analysis of Acoustic Wave Propagation in a Thin Duct 
           in the Presence of a Shear Flow. },
    publisher={9th International Conference on Mathematical and Numerical 
           Aspects of Waves (WAVES'09), Pau },
    year={2009 },
    month={6},
}