@article{RSA_1967__15_3_51_0,
     author = {Pil\'e, G.},
     title = {Esquisse d'une th\'eorie g\'en\'erale des syst\`emes entr\'ee-sortie (hypoth\`ese de conservation des flux)},
     journal = {Revue de Statistique Appliqu\'ee},
     pages = {51--80},
     publisher = {Soci\'et\'e de Statistique de France},
     volume = {15},
     number = {3},
     year = {1967},
     language = {fr},
     url = {http://www.numdam.org/item/RSA_1967__15_3_51_0/}
}