1. Department of Defense Test Method Standard, MIL-STD-810G, 31 October 2008.
2. The Arctic Climate System
3. Subsurface salinity, Global Oceans (in State of the Climate in 2010);Levitus,2011
4. Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden
5. After MIL-PRF-29504/20, November 2008.