KUMAR, M.; AMBA, R. An Improved Rotary Mechanism Engine. Defence Science Journal, [S. l.], v. 27, n. 1, p. 43–52, 2014. DOI: 10.14429/dsj.27.6656. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6656. Acesso em: 6 jul. 2025.