| Verfasser | Häufigkeit |
| De Robertis, Francesco Maria 1910- |
88 |
| Dante Alighieri 1265-1321 |
6 |
| De Robertis, Francesco Maria |
2 |
| Crema, Maria Rita |
1 |
| De Robertis, Daniela |
1 |
| De Robertis, Teresa |
1 |
| DeRobertis, Francesco Maria |
1 |
| DeRobertis, T. de |
1 |
| Frioli, Donatella |
1 |
| Monti, Carla Maria |
1 |
| Nörr, Dieter 1931-2017 |
1 |
| Pagnoni-Sturlese, Maria Rita |
1 |
| Petoletti, Marco 1972- |
1 |
| Zamponi, Stefano 1949- |
1 |