@article{Tanskanen-2018-1760,
  author = {Tanskanen, A and Yrjola, R and Baum, U and Tanskanen, S and Eriksson, J},
  title = {How many observation days are needed to reliably describe bird migration?},
  journal = {Ornis Svecica},
  year = {2018},
  month = {jun},
  publisher = {Sveriges Ornitologiska},
  volume = {28},
  pages = {3--13},
  doi = {10.34080/os.v28.19519},
  url = {https://www.researchgate.net/publication/327136940_How_many_observation_days_are_needed_to_reliably_describe_bird_migration},
  keywords = {Wind Energy, Collision, Birds},
}