@article{10_4064_cm_67_1_15_19,
     author = {G\"unter Lettl},
     title = {Note on the {Galois} module structure of quadratic extensions},
     journal = {Colloquium Mathematicum},
     pages = {15--19},
     publisher = {mathdoc},
     volume = {67},
     number = {1},
     year = {1994},
     doi = {10.4064/cm-67-1-15-19},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-67-1-15-19/}
}