@article{JRAM_1981__321_152307,
     author = {Harvey Cohn},
     title = {The explicit {Hilbert} 2-cyclic class field for {Q} (... -p).},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {64--77},
     publisher = {mathdoc},
     volume = {321},
     year = {1981},
     zbl = {0455.12006},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1981__321_152307/}
}