Yu-Hung ChienZhe George ZhangSiping SuShey-Huei Sheu2025-05-132025-05-132020-07-3010.1080/16843703.2020.1796208https://nutcir-lib.nutc.edu.tw/handle/123456789/314Optimal periodic preventive maintenance policy for a system subject to failures/repairs which follow the non-homogeneous pure birth processjournal-article