@article{Defise:169,
      author        = "Defise, J.-M. and Clette, F. and Auchere, F.",
      title         = "{In-flight characterization and compensation of the
                       optical properties of the EIT instrument}",
      year          = "1999",
      note          = "EUV, X-Ray and Gamma-Ray Instrumentation for Astronomy,
                       eds. O.H. Siegmund and K.A. Flanagan",
}