@article{PMB_1983____A1_0,
     author = {Cougnard, Jean},
     title = {Sur les extensions \`a groupe de {Galois} $A_4$},
     journal = {Publications math\'ematiques de la Facult\'e des sciences de Besan\c{c}on. Th\'eorie des nombres},
     eid = {1},
     pages = {1--11},
     publisher = {Universit\'e de Besan\c{c}on},
     year = {1983},
     doi = {10.5802/pmb.a-31},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/pmb.a-31/}
}