@article{10_1017_S0017089500006054,
     author = {Elstrodt, J. and Grunewald, F. and Mennicke, J.},
     title = {On unramified {Am-extensions} of quadratic number fields},
     journal = {Glasgow mathematical journal},
     pages = {31--37},
     year = {1985},
     volume = {26},
     doi = {10.1017/S0017089500006054},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006054/}
}