"Volcanic history of Ventotene"Arquivado 19 de xullo de 2011 en Wayback Machine.. Annamaria Perrotta, Claudio Scarpati, Lisetta Giacomelli and Anna Rita Capozzi, "Proximal facies of a caldera forming eruption: the Parata Grande Tuff at Ventotene Island (Italy)." Journal of Volcanology and Geothermal Research 1996.
web.archive.org
"Volcanic history of Ventotene"Arquivado 19 de xullo de 2011 en Wayback Machine.. Annamaria Perrotta, Claudio Scarpati, Lisetta Giacomelli and Anna Rita Capozzi, "Proximal facies of a caldera forming eruption: the Parata Grande Tuff at Ventotene Island (Italy)." Journal of Volcanology and Geothermal Research 1996.
