1. Trenberth KE. The role of the oceans in climate. Available from: http://www.oco.noaa.gov/roleofOcean.html [accessed 10.10.16].
2. International Renewable Energy Agency. Ocean energy: technology readiness, patents, deployment status and outlook. Available from: http://www.irena.org/DocumentDownloads/Publications/IRENA_Ocean_Energy_report_2014.pdf [accessed 10.10.16].
3. Enerdata Research & Consulting. Global energy statistical yearbook 2016. Available from: https://yearbook.enerdata.net/electricity-domestic-consumption-data-by-region.html [accessed 10.10.16].
4. International Energy Agency. Ocean energy systems, implementing agreement on ocean energy systems. Annual report 2007. Available from: http://pt21.ru/docs/pdf/28_e.pdf [accessed 10.10.16].
5. Wave energy in Europe: current status and perspectives;Clément;Renew Sustain Energy Rev,2002