@article{JRAM_1969__238_183509,
     author = {Ken Grant and Joan Leitzel},
     title = {Norm limitation theorems of class field theory.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {105--111},
     publisher = {mathdoc},
     volume = {238},
     year = {1969},
     zbl = {0226.12007},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1969__238_183509/}
}