@article{CMH_1948__21_138931,
     author = {Ladislas Fuchs},
     title = {A {Theorem} on the {Relative} {Norm} of an {Ideal.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {29--43},
     publisher = {mathdoc},
     volume = {21},
     year = {1948},
     zbl = {0030.11001},
     url = {http://geodesic.mathdoc.fr/item/CMH_1948__21_138931/}
}