@techreport{Zehtindjiev-2013-2603,
  author = {Zehtindjiev, P and Whitfield, D},
  title = {Bird migration monitoring in the Kaliakra region in autumn 2013, and analysis of potential impact after four years of operation},
  institution = {AES Geo Energy},
  year = {2013},
  month = {jan},
  url = {http://www.aesgeoenergy.com/site/images/Bird%20Migration%20-%20Autumn%202013.pdf},
  keywords = {Wind Energy, Land-Based Wind, Birds},
}