@article{SDPP_1976-1977__18_1_A8_0,
     author = {Gillard, Roland},
     title = {Sur le groupe des classes des extensions ab\'eliennes r\'eelles},
     journal = {S\'eminaire Delange-Pisot-Poitou. Th\'eorie des nombres},
     note = {talk:10},
     pages = {1--6},
     publisher = {Secr\'etariat math\'ematique},
     volume = {18},
     number = {1},
     year = {1976-1977},
     mrnumber = {551337},
     zbl = {0375.12006},
     language = {fr},
     url = {http://archive.numdam.org/item/SDPP_1976-1977__18_1_A8_0/}
}