@article{RSMUP_1990__83__45_0,
     author = {Mann, Avinoam},
     title = {Extreme elements of finite $p$-groups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {45--54},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {83},
     year = {1990},
     mrnumber = {1066427},
     zbl = {0693.20018},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__83__45_0/}
}