„Improving the Powerful Behavior of an Experimental Model of Savonius Turbine (S-Rotor) with Coupled Aerodynamic Additional Blades“. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Bd. 41, Nr. 2, Juni 2018, S. 49-53, https://ojs.ugal.ro/index.php/mms/article/view/1446.