@article{RSMUP_1977__58__117_0,
     author = {Legovini, Pierantonio},
     title = {Gruppi minimali non in $\mathit {s} \mathfrak {N} \vee \mathfrak {A}$},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {117--128},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {58},
     year = {1977},
     zbl = {0414.20023},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1977__58__117_0/}
}