1. BTM. BTM World Market Update 2012. Navigant Research; 2013.
2. A review of surface engineering issues critical to wind turbine performance;Dalili;Renew Sustain Energy Rev,2009
3. Baring-Gould I, et al. IEA wind recommended practice 13: wind energy in cold climates. IEA Task-19.; 22 May 2012.
4. Fikke S., Ronsten, G., Heimo, A., Kunz, S., Ostrozlik, M., Persson, P.-E., Sabata, J., Wareing, B., Wichura, B., Chum, J., Laakso, T., Säntti, K, Makkonen, L, 2006, COST-727 - Atmospheric Icing on Structures, Measurements and data collection on icing: State of the Art. Publication of MeteoSwiss, 75, 110 pp.
5. Cattin, R. Icing of Wind Turbines, Elforsk report 12:13. Technical Report January; 2012.