@article{PDML_1982___1C_A1_0,
     author = {Braconnier, Jean},
     title = {1 - {Alg\`ebres} gradu\'ees},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {1--13},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     number = {1C},
     year = {1982},
     language = {fr},
     url = {http://www.numdam.org/item/PDML_1982___1C_A1_0/}
}