@article{GARCIA-GRACIA:148953,
      author        = "GARCIA-GRACIA, M. and COMECH,M. PAZ and SALLAN,J. and
                       LOPEZ-ANDIA,D. and ALONSO,O.",
      title         = "{Voltage Dip Generator for Wind Energy Systems Up to 5
                       MW}",
      year          = "2009",
}