@article{PMB_1984____A2_0,
     author = {Cougnard, Jean},
     title = {Groupe des unit\'es et nombre de classes de certaines extensions di\'edrales de degr\'e~8 de~$\protect \mathbb{Q}$},
     journal = {Publications math\'ematiques de la Facult\'e des sciences de Besan\c{c}on. Th\'eorie des nombres},
     eid = {2},
     pages = {1--22},
     publisher = {Universit\'e de Besan\c{c}on},
     year = {1984},
     doi = {10.5802/pmb.a-38},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/pmb.a-38/}
}