@article{RSMUP_1960__30__245_0,
     author = {Morgantini, Edmondo},
     title = {Su di un problema di {Erd\"os}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {245--247},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {30},
     year = {1960},
     mrnumber = {125464},
     zbl = {0099.15503},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1960__30__245_0/}
}