@article{RSMUP_1988__80__265_0,
     author = {Casolo, Carlo},
     title = {Subgroups of finite index in generalized $T$-groups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {265--277},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {80},
     year = {1988},
     mrnumber = {988125},
     zbl = {0692.20029},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1988__80__265_0/}
}