"Efficiency and performance"(PDF). UK Department for Business, Enterprise & Regulatory Reform. 5 Şubat 2009 tarihinde kaynağından(PDF) arşivlendi. Erişim tarihi: 29 Aralık 2007.
Pickering (1 Ağustos 2006). "Recycling technologies for thermoset composite materials—current status". Composites Part A: Applied Science and Manufacturing. The 2nd International Conference: Advanced Polymer Composites for Structural Applications in Construction. 37 (8): 1206-1215. doi:10.1016/j.compositesa.2005.05.030.
G. Bywaters, P. Mattila, D. Costin, J. Stowell, V. John, S. Hoskins, J. Lynch, T. Cole, A. Cate, C. Badger, and B. Freeman (Ekim 2007). "Northern Power NW 1500 Direct-Drive Generator"(PDF). National Renewable Energy Laboratory. Subcontract Report NREL/SR-500-40177: iii. 19 Ekim 2020 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 20 Ağustos 2020.
"Efficiency and performance"(PDF). UK Department for Business, Enterprise & Regulatory Reform. 5 Şubat 2009 tarihinde kaynağından(PDF) arşivlendi. Erişim tarihi: 29 Aralık 2007.
G. Bywaters, P. Mattila, D. Costin, J. Stowell, V. John, S. Hoskins, J. Lynch, T. Cole, A. Cate, C. Badger, and B. Freeman (Ekim 2007). "Northern Power NW 1500 Direct-Drive Generator"(PDF). National Renewable Energy Laboratory. Subcontract Report NREL/SR-500-40177: iii. 19 Ekim 2020 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 20 Ağustos 2020.