@article{BUMI_1960_3_15_2_a4,
     author = {Arrighi, Gino},
     title = {Sulle matrici radice $m^{\rm a}$ della matrice nulla.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {128--133},
     publisher = {mathdoc},
     volume = {Ser. 3, 15},
     number = {2},
     year = {1960},
     zbl = {0100.25303},
     mrnumber = {113900},
     language = {it},
     url = {https://geodesic-test.mathdoc.fr/item/BUMI_1960_3_15_2_a4/}
}