@article{PDML_1976__13_3_63_0,
     author = {Vey, Jacques},
     title = {Rapport sur les champs symplectiques formels},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {63--78},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {13},
     number = {3},
     year = {1976},
     mrnumber = {467767},
     zbl = {0373.57012},
     language = {fr},
     url = {http://www.numdam.org/item/PDML_1976__13_3_63_0/}
}