@article{RO_1975__9_3_69_0,
     author = {Nakagawa, Toshio and Osaki, Shunji},
     title = {The busy period of a repairman for redundant repairable systems},
     journal = {Revue fran\c{c}aise d'automatique, informatique, recherche op\'erationnelle. Recherche op\'erationnelle},
     pages = {69--73},
     publisher = {EDP-Sciences},
     volume = {9},
     number = {V3},
     year = {1975},
     mrnumber = {403616},
     zbl = {0316.90024},
     language = {en},
     url = {http://www.numdam.org/item/RO_1975__9_3_69_0/}
}