ElAlaoui, R., H. Mounirv, B. El Mostapha, and A. El Marjani. “Theoretical Study to Calculate the Vibration Modes of a Wind Turbine Blade With a New Composite Material”. World Journal of Environmental Research, vol. 8, no. 1, May 2018, pp. 17-25, doi:10.18844/wjer.v8i1.3946.