@techreport{Trujillo:442,
      author       = "Trujillo, L and Conde, A and Leonowicz, Z",
      title        = "Error Compensation in Distance Relays Caused by Wind Power
                      Plants in the Power Grid",
      number       = "ENY-PREPRINT-2013-013.
                      http://www.sciencedirect.com/science/article/pii/S0378779613002198",
      month        = "Sie",
      year         = "2013",
      note         = "Preprint published in Electric Power Systems Research,
                      Volume 106, January 2014, Pages 109–119 
                      http://dx.doi.org/10.1016/j.epsr.2013.08.009",
}