Balraj, Siranthini. “Analysis the Unpowered Freewheeling Propeller Impact in Quadcopter for Energy Harvesting Process”. Defence Science Journal 74, no. 01 (October 16, 2023): 3–10. Accessed June 15, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/17651.