Model of spare part fill rate for systems of various structures and optimization method
RUAN Min-zhi，LI Qing-min，PENG Ying-wu，GE En-shun，HUANG Ao-lin
Journal of Systems Engineering and Electronics . 2011, (8): 1799 -1803 .  DOI: 10.3969/j.issn.1001-506X.2011.08.23