@article{RSMUP_1941__12__1_0,
     author = {Zappa, Guido},
     title = {Sui gruppi di {Hirsch} supersolubili. {Nota} {I}},
     journal = {Rendiconti del Seminario matematico della R. Universit\`a di Padova},
     pages = {1--11},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {12},
     year = {1941},
     mrnumber = {18183},
     zbl = {0026.05502},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1941__12__1_0/}
}