@article{RSMUP_1979__61__271_0,
     author = {Lunardon, Guglielmo},
     title = {Piani di traslazione derivabili},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {271--284},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {61},
     year = {1979},
     mrnumber = {569665},
     zbl = {0445.51008},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1979__61__271_0/}
}