KUMAR, A. Profit Analysis in Some Redundant Systems With Repair Maintenance. Defence Science Journal, [S. l.], v. 28, n. 4, p. 161–166, 2014. DOI: 10.14429/dsj.28.6708. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6708. Acesso em: 15 jun. 2025.