Oprina, Gabriela, Mitulet, Andreea, Nicolaie, Sergiu, Cirnaru, Radu, Cuciureanu, Dumitru. "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 (2015): 115-122. https://doi.org/10.5593/sgem2015/b41/s17.015