@CONFERENCE\{IMM2000-02212,
    author       = "O. Bang and T. W. Graversen and C. B. Clausen",
    title        = "Effective nonlinearities and multi-wavelength second-harmonic generation in modulated quasi-phase-matching gratings",
    year         = "2000",
    pages        = "162-164",
    booktitle    = "in Nonlinear Optics: Materials, Fundamentals and Applications, {OSA} Technical Digest, Optical Society of America",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2212-full.html"
}