@article{PDML_1974__11_4_89_0,
     author = {Assous, Marc},
     title = {Caract\'erisation du type d'ordre des barri\`eres de {Nash-Williams}},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {89--106},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {11},
     number = {4},
     year = {1974},
     mrnumber = {366758},
     zbl = {0323.06001},
     language = {fr},
     url = {http://archive.numdam.org/item/PDML_1974__11_4_89_0/}
}