TY - JOUR AU - Ke, Jau-Chuan AU - Lee, Ssu-Lang AU - Liou, Cheng-Hwai TI - Machine repair problem in production systems with spares and server vacations JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2009 SP - 35 EP - 54 VL - 43 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2009004/ DO - 10.1051/ro/2009004 LA - en ID - RO_2009__43_1_35_0 ER -