@article{RSMUP_1961__31__104_0,
     author = {Zacher, Giovanni},
     title = {I gruppi risolubili con duale},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {104--113},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {31},
     year = {1961},
     mrnumber = {125881},
     zbl = {0113.25302},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1961__31__104_0/}
}