@article{RSMUP_1967__37__146_0,
     author = {Morgantini, Edmondo},
     title = {Su alcuni problemi di ordinamento},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {146--213},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {37},
     year = {1967},
     mrnumber = {234713},
     zbl = {0183.23602},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1967__37__146_0/}
}