@article{Dirksen-1997-2654,
  author = {Dirksen, S and Spaans, A and Winden, J and Bergh, L},
  title = {Nocturnal Flight Patterns and Altitudes of Diving Ducks in the IJsselmeer Area},
  journal = {Limosa},
  year = {1997},
  month = {dec},
  publisher = {ResearchGate},
  volume = {71},
  number = {2},
  pages = {57--68},
  url = {https://www.researchgate.net/publication/265250298_Nocturnal_flight_patterns_and_altitudes_of_diving_ducks_in_the_IJsselmeer_area},
  keywords = {Wind Energy, Fixed Offshore Wind, Waterfowl, Birds},
}