@article{BUMI_1956_3_11_2_a2,
     author = {Cherubino, Salvatore},
     title = {Su una disuguaglianza in matrici.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {126--132},
     publisher = {mathdoc},
     volume = {Ser. 3, 11},
     number = {2},
     year = {1956},
     zbl = {0072.25203},
     mrnumber = {79562},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1956_3_11_2_a2/}
}