KUMAR, P.; SINGH, D.; TANEJA, A. K. Redundancy Optimization for a System Comprising Two Operative Unit and \(N\) Cold Standby Units with Activation Time. Communications in Mathematics and Applications, [S. l.], v. 16, n. 2, p. 599–614, 2025. DOI: 10.26713/cma.v16i2.3088. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/3088. Acesso em: 16 feb. 2026.