Stochastic modelling and analysis of a repairable 2-out-of-4 system. - Ibrahim Yusuf; K. Suleiman; Yusuf Bashir; U. A. Ali (Int. J. Math. Oper. Res., 2014)

Performance Analysis of Multi-computer System Consisting of Three Subsystems in Series Configuration Using Copula Repair Policy. - Ibrahim Yusuf; Abdulkareem Lado Ismail; Vijay Vir Singh; U. A. Ali; Nasir Ahmad Sufi (SN Comput. Sci., 2020)