@article{AFST_1995_6_4_3_633_0,
     author = {Niglio, Louis},
     title = {Classes isotropes et classes de {Maslov}},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {633--654},
     publisher = {Universit\'e Paul Sabatier},
     address = {Toulouse},
     volume = {6e s{\'e}rie, 4},
     number = {3},
     year = {1995},
     mrnumber = {1607515},
     zbl = {0872.57031},
     language = {fr},
     url = {http://archive.numdam.org/item/AFST_1995_6_4_3_633_0/}
}