@article{IM2_1975_9_2_a1,
     author = {O. Neumann},
     title = {On $p$-closed algebraic number fields with restricted ramification},
     journal = {Izvestiya. Mathematics },
     pages = {243--254},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1975_9_2_a1/}
}