Glahder C. M., Fox A. D., O’Connell M., Jespersen M., & Madsen J. (2007). Eastward moult migration of non-breeding pink-footed geese (Anser brachyrhynchus) in Svalbard. Polar Research, 26(1), 31-36. https://doi.org/10.3402/polar.v26i1.6206