Dalby, L., Söderquist, P.
, Christensen, T. K., Clausen, P., Einarsson, Á., Elmberg, J.
, Fox, A. D., Holmqvist, N., Langendoen, T., Lehikoinen, A., Lindström, Å., Lorentsen, S.-H., Nilsson, L., Pöysä, H., Rintala, J., Sigfússon, A. Þ.
& Svenning, J.-C. (2013).
The status of the Nordic populations of the Mallard (Anas platyrhynchos) in a changing world.
Ornis Fennica,
90, 2-15.
http://www.ornisfennica.org/search.htm
Cao, L.
, Fox, A. D., Koyama, K., Kim, H. J., Kondratyev, A., Batbayar, N., Syroechkovskiy, E. E., Rozenfeld, S., Kurechi, M., Lee, H., Goroshko, O. & Choi, C. Y. (2015).
The status of goose populations in East Asia. Abstract fra Waterfowl of Northern Eurasia, Salekhard, Rusland.
Fox, A. D., Sinneett, D., Baroch, J., Stroud, D. A., Kampp, K., Egevang, C.
& Boertmann, D. (2012).
The status of Canada Goose Branta canadensis subspecies in Greenland.
Dansk Ornitologisk Forenings Tidsskrift,
106, 87-92.
Petersen, A. H.
, Clausen, P., Gamfeldt, L.
, Hansen, J. L. S., Norling, P., Roth, E., Svedäng, H. & Tunón, H. (2018).
The Sound: Biodiversity and ecosystem services in a densely populated and heavily exploited area. I T. Tunón (red.),
Biodiversity and ecosystem services in Nordic coastal ecosystems: an IPBES-like assessment : The geographical case studies (Bind 2, s. 135-171). Nordic Council of Ministers.
https://doi.org/10.6027/TN2018-532