1. Radioactivity in polar regions–main sources;Aarkrog;J. Environ. Radioact,1994
2. IAEA, isotopes and water resources management;Aggarwal,2016
3. Combined Effects of Selected Pollutants and Climate Change in the Arctic Environment;AMAP (Arctic Monitoring and Assessment Programme),2011
4. Snow, water, ice and permafrost in the arctic (SWIPA);AMAP (Arctic Monitoring and Assessment Programme),2017
5. Thawing permafrost and thicker active layers in Sub-arctic Sweden;Åkerman;Permafr. Periglac. Process,2008