RANDHAWA, Navdeep Kaur; BUTTAR, Avtar Singh. Sensing of Spectrum Holes in Cognitive Radio Networks: A Survey. International Journal of Computer Sciences and Engineering, [S. l.], v. 2, n. 8, p. 28–34, 2014. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/214. Acesso em: 2 feb. 2026.