N. CAZACU, “Experimental Model of Wind Turbine with Vertical Axis, MultiStorey and with 2 Pairs of Blades on Level Coupled Aerodynamic”, The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, vol. 42, no. 2, pp. 21-26, Jun. 2019.