 | (in Italian). Retrieved 21 February 2022. "Campi Flegrei, storia del supervulcano più pericoloso d'Europa" (in Italian). Retrieved 21 February 2022. "Osservatorio... 30 KB (3,153 words) - 21:12, 27 February 2024 |
| (in Italian). Retrieved 21 February 2022. "Campi Flegrei, storia del supervulcano più pericoloso d'Europa" (in Italian). Retrieved 21 February 2022. "Osservatorio... 30 KB (3,153 words) - 21:12, 27 February 2024 |