Gutt J, Adams B, Bracegirdle T, et al. Antarctic Thresholds - Ecosystem Resilience and Adaptation (AnT-ERA), a new SCAR-biology programme. Polarforschung. 2013;82:147-150. Available at: http://epic.awi.de/34238/1/Polarforschung_82-2_147-150.pdf.

Chapin FS, McGuire A, Nuttall M, et al. Polar Systems. In: Hassan R, Scholes R, Ash N Millennium Ecosystem Assessment. Current State and Trends: Findings of the Condition and Trends Working Group. Millennium Ecosystem Assessment. Current State and Trends: Findings of the Condition and Trends Working Group. Island Press; 2005:717-743. doi:LTER.