@article{Cha-Euv-Haz-2000,
    author={Isabelle Champy-Doutreleau and Daniel Euvrard and Christophe 
           Hazard },
    title={Perturbation of low-frequency underwater acoustics by gravity 
           waves },
    journal={Journal of Fluid Mechanics },
    year={2000 },
    volume={411 },
    pages={305--324},
}