@techreport{Nygard-2008-4862,
  author = {Nygård, T and Bevanger, K and Reitan, O},
  title = {The Relation Between Birds and Wind Turbines and Other Aerial Obstacles - A Literature Survey},
  institution = {Norwegian Institute for Nature Research (NINA)},
  year = {2008},
  month = {nov},
  number = {NINA Report 413},
  url = {http://www.nina.no/archive/nina/PppBasePdf/rapport/2008/413.pdf},
  keywords = {Wind Energy, Birds},
}