@article{Verbeeck:1154,
      author        = "Verbeeck, C. and Higgins, P. and Colak, T. and Watson, F.
                       and Delouille, V. and Mampaey, B. and Qahwaji, R.",
      title         = "{A multi-wavelength analysis of active regions and
                       sunspots by comparison of automatic detection algorithms }",
      month         = "May",
      year          = "2011",
}