@article{RO_2009__43_1_35_0,
     author = {Ke, Jau-Chuan and Lee, Ssu-Lang and Liou, Cheng-Hwai},
     title = {Machine repair problem in production systems with spares and server vacations},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {35--54},
     publisher = {EDP-Sciences},
     volume = {43},
     number = {1},
     year = {2009},
     doi = {10.1051/ro/2009004},
     mrnumber = {2502324},
     zbl = {1158.60378},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/ro/2009004/}
}