SINGH, Anvinder; SHARMA, Varun. Design analysis and construction of energy harvesting coaxial helicopter. Aviation, [S. l.], v. 17, n. 4, p. 145–149, 2013. DOI: 10.3846/16487788.2013.861230. Disponível em: https://journals.vilniustech.lt/index.php/Aviation/article/view/3557. Acesso em: 30 may. 2025.