Evaluation and application of product operational reliability
 based on scheduled servicing
LI Dawei, ZHANG Zhihua, ZHONG Qianghui, LIU Tianhua, LI Wan
Journal of Systems Engineering and Electronics . 2013, (7): 1584 -1588 .  DOI: 10.3969/j.issn.1001-506X.2013.07.38