@techreport{Zehtindjiev-2020-1118231,
  author = {Zehtindjiev, P and Whitfield, D},
  title = {Summary of Activities and the Results of Ornithological Monitoring in the Integrated System for Protection of Birds, 2019},
  institution = {Bulgarian Academy of Sciences},
  year = {2020},
  month = {jan},
  url = {https://img1.wsimg.com/blobby/go/1a109f6d-5fe3-4ff5-bcf3-17602b59ac27/downloads/2019%20Annual%20Summary%20Report_ENG.pdf?ver=1627384417303},
  keywords = {Wind Energy, Land-Based Wind, Collision, Displacement, Birds},
}