@inbook{Had-Jol-2002-1,
    author={Houssem Haddar and Patrick Joly },
    title={Stability of thin layer approximation of electromagnetic waves 
           scattering by linear and non linear coatings. },
    publisher={North-Holland, Amsterdam },
    year={2002 },
    volume={31 },
    series={Stud. Math. Appl. },
    pages={415--456},
}