Voir la notice de l'article provenant de la source Numdam
@article{RO_1973__7_1_63_0, author = {Krakowski, M.}, title = {Conservation methods in queuing theory}, journal = {RAIRO - Operations Research - Recherche Op\'erationnelle}, pages = {63--83}, publisher = {EDP-Sciences}, volume = {7}, number = {V1}, year = {1973}, mrnumber = {331553}, zbl = {0258.60069}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RO_1973__7_1_63_0/} }
Krakowski, M. Conservation methods in queuing theory. RAIRO - Operations Research - Recherche Opérationnelle, Tome 7 (1973) no. V1, pp. 63-83. http://geodesic.mathdoc.fr/item/RO_1973__7_1_63_0/