ElAlaoui, R., Mounirv, H., El Mostapha, B. and El Marjani, A. 2018. Theoretical study to calculate the vibration modes of a wind turbine blade with a new composite material. World Journal of Environmental Research. 8, 1 (May 2018), 17–25. DOI:https://doi.org/10.18844/wjer.v8i1.3946.