Hetyei, Csaba, and Ferenc Szlivka. “COUNTER-ROTATING DUAL ROTOR WIND TURBINE LAYOUT OPTIMISATION”. Acta Polytechnica 61, no. 2 (April 30, 2021): 342–349. Accessed March 26, 2025. https://ojs.cvut.cz/ojs/index.php/ap/article/view/6721.