Atkinson, P. W., Robinson, R. A., Clark, J. A., Miyar, T., Downie, I. S., Du Feu, C. R., Fiedler, W., Fransson, T., Grantham, M. J., Gschweng, M., M., Spina, F., & Crick, H. Q. P. (2007). Migratory movements of waterfowl: A web-based mapping tool. EURING report to the EU Commission.