@article{DeGroof:224,
      author        = "De Groof, A. and Bastiaensen, C. and Muller, D.A.N. and
                       Berghmans, D. and Poedts, S.",
      title         = "{Detailed comparison of downflows seen both in EIT 30.4 nm
                       and Big Bear H? movies}",
      year          = "2005",
}