MOORTHY, Y. K.; PILLAI, S. S.; SHINY, G. Energy-Efficient Multiple Relay Selection in Cognitive Radio Networks. Defence Science Journal, [S. l.], v. 68, n. 3, p. 295–299, 2018. DOI: 10.14429/dsj.68.11758. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/11758. Acesso em: 14 jun. 2025.