Oprina, Gabriela, Mitulet, Andreea, Nicolaie, Sergiu, Cirnaru, Radu, Cuciureanu, Dumitru (2015). COMPARATIVE ANALYSIS OF A COUNTER ROTATING WIND TURBINE TESTING RESULTS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES, 115-122. https://doi.org/10.5593/sgem2015/b41/s17.015