@article{JRAM_1995__458_153681, author = {Alexander Schmidt}, title = {Positively ramified extensions of algebraic number fields.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {93--126}, publisher = {mathdoc}, volume = {458}, year = {1995}, zbl = {0821.11055}, url = {http://geodesic.mathdoc.fr/item/JRAM_1995__458_153681/} }