@article{RSMUP_2006__115__165_0,
     author = {Stonehewer, Stewart E. and Zacher, Giovanni},
     title = {Cyclic quasinormal subgroups of arbitrary groups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {165--187},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {115},
     year = {2006},
     mrnumber = {2245594},
     zbl = {1156.20025},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_2006__115__165_0/}
}