@article{AM2_1969__2_182310,
     author = {M. HOSSZ\"U},
     title = {Remarks on the {Square} {Norm} {(Short} {Communication)}},
     journal = {Aequationes mathematicae},
     pages = {126--127},
     year = {1969},
     volume = {2},
     url = {http://geodesic.mathdoc.fr/item/AM2_1969__2_182310/}
}