@article{RO_1973__7_1_63_0,
     author = {Krakowski, M.},
     title = {Conservation methods in queuing theory},
     journal = {Revue fran\c{c}aise d'automatique, informatique, recherche op\'erationnelle. Recherche op\'erationnelle},
     pages = {63--83},
     publisher = {EDP-Sciences},
     volume = {7},
     number = {V1},
     year = {1973},
     mrnumber = {331553},
     zbl = {0258.60069},
     language = {en},
     url = {http://archive.numdam.org/item/RO_1973__7_1_63_0/}
}