Beached bird surveys in The Netherlands winter 2020/21. RWS Centrale Informatievoorziening BM 21.16
Camphuysen, C.J. (2021). Beached bird surveys in The Netherlands winter 2020/21. RWS Centrale Informatievoorziening BM 21.16. NIOZ Royal Netherlands Institute for Sea Research: Den Burg. 27 pp.