@article{Brajsa:78,
      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. II. Results for 1998/99
                       obtained with interactive and automatic methods}",
      year          = "2002",
}