Kumar, Pawan, Ankush Bharti, and Amit Gupta. “Reliability Analysis of A Two Non-Identical Unit System With Repair and Replacements Having Correlated Failures and Repairs”. Journal of Informatics and Mathematical Sciences 4, no. 3 (December 31, 2012): 339–350. Accessed May 5, 2024. https://www.rgnpublications.com/journals/index.php/jims/article/view/99.