@article{RSMUP_1959__29__256_0,
     author = {Darbo, Gabriele},
     title = {Sulle coincidenze di mappe ponderate},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {256--270},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {29},
     year = {1959},
     mrnumber = {126284},
     zbl = {0089.39001},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1959__29__256_0/}
}