@article{JTNB_1992__4_1_97_0,
     author = {Fr\"ohlich, A.},
     title = {The genus class group {I}},
     journal = {S\'eminaire de th\'eorie des nombres de Bordeaux},
     pages = {97--111},
     publisher = {Universit\'e Bordeaux I},
     volume = {Ser. 2, 4},
     number = {1},
     year = {1992},
     mrnumber = {1183920},
     zbl = {0769.11040},
     language = {en},
     url = {http://archive.numdam.org/item/JTNB_1992__4_1_97_0/}
}