@techreport{Zehtindjiev-2011-2607,
  author = {Zehtindjiev, P and Whitfield, D},
  title = {Bird migration monitoring in the AES Geo Power Wind Park territory, Kaliakra region, in autumn 2011, and an evaluation of a potential “barrier effect” after two years of operation},
  institution = {AES Geo Energy},
  year = {2011},
  month = {jan},
  url = {http://www.aesgeoenergy.com/site/images/Report%20autumn%20monitoring%202011.pdf},
  keywords = {Wind Energy, Land-Based Wind, Passerines, Birds},
}