@article{RSMUP_1956__26__328_0,
     author = {Tonolo, Angelo},
     title = {Sugli spazi riemanniani normali ad $n$ dimensioni},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {328--333},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {26},
     year = {1956},
     mrnumber = {84824},
     zbl = {0073.38701},
     language = {it},
     url = {http://www.numdam.org/item/RSMUP_1956__26__328_0/}
}