Hansen, J. (2009). Disturbance in the study area. I L. M. Jensen & M. Rasch (red.), Zackenberg Ecological Research Operations, 14th Annual Report, 2008 (s. 100-101). National Environmental Research Institute, Aarhus University.
Aastrup, P. (2009). Disturbances in the study area. I L. M. Jensen & M. Rasch (red.), Nuuk Ecological Research Operations, 2nd Annual Report, 2008 (s. 69). National Environmental Research Institute, Aarhus University.