@article{RSMUP_1954__23__343_0,
     author = {Manaresi, Fabio},
     title = {Un problema di autovalori},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {343--351},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {23},
     year = {1954},
     mrnumber = {65830},
     zbl = {0057.08103},
     language = {it},
     url = {http://archive.numdam.org/item/RSMUP_1954__23__343_0/}
}