@article{Brajsa:196,
      author        = "Brajsa, R. and Woehl, H. and Vrsnak, B. and Ruzdjak, V.
                       and Clette, F. and Hochedez, J.-F.",
      title         = "{Solar differential rotation determined by tracing coronal
                       bright points in SOHO-EIT images. I. Interactive and
                       automatic methods of data reduction?}",
      year          = "2001",
}