@article{RSMUP_1976__55__179_0,
     author = {Gattazzo, Remo},
     title = {Sottogruppi $Q$-congruenziali di $SL(n, R)$},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {179--193},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {55},
     year = {1976},
     mrnumber = {457583},
     zbl = {0375.20036},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1976__55__179_0/}
}