@article{RSMUP_1980__62__165_0,
     author = {Biliotti, Mauro},
     title = {Sui derivati dei piani desarguesiani},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {165--181},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {62},
     year = {1980},
     zbl = {0445.51004},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1980__62__165_0/}
}