CAZACU, N. 2019. The Influence of the Number of Levels on the Behavior of a Vertical Axis Wind Turbine with Two Pairs of Blades and Periodic Aerodinamic Couplings. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science. 42, 3 (Sep. 2019), 5-10. DOI:https://doi.org/https://doi.org/10.35219/mms.2019.3.01.