Nilsson, L., De Jong, A., Heinicke, T., & Sjöberg, K. (2010). Satellite tracking of Bean Geese Anser fabalis fabalis and A. f. rossicus from spring staging areas in northern Sweden to breeding and moulting areas. Ornis Svecica, 20(3–4), 184–189. https://doi.org/10.34080/os.v20.22621