The status of the Nordic populations of the mallard (Anas platyrhynchos) in a changing world - Dalby, Lars; Söderquist, Pär; Christensen, Thomas K.; Clausen, Preben; Einarsson, Árni; Elmberg, Johan; Fox, Anthony D.; Holmqvist, Niklas; Langendoen, Tom; Lehikoinen, Aleksi; Lindström, Åke; Lorentsen, Svein-Håkon; et al. (My University, 2013)