@article{RSMUP_1989__81__107_0,
     author = {Casolo, Carlo},
     title = {Groups with finite conjugacy classes of subnormal subgroups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {107--149},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {81},
     year = {1989},
     mrnumber = {1020190},
     zbl = {0692.20028},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1989__81__107_0/}
}