@techreport{Zehtindjiev-2019-768105,
  author = {Zehtindjiev, P and Whitfield, D},
  title = {Summary of Activities and the Results of Ornithological Monitoring in the Integrated System for Protection of Birds, 2018},
  institution = {Bulgarian Academy of Sciences},
  year = {2019},
  month = {jan},
  url = {https://img1.wsimg.com/blobby/go/1a109f6d-5fe3-4ff5-bcf3-17602b59ac27/downloads/2018%20Annual%20Summary%20Report_ENG.pdf?ver=1614243304798},
  keywords = {Wind Energy, Land-Based Wind, Collision, Birds},
}