• https://thesis.unipd.it/handle/20.500.12608/45353
• https://thesis.unipd.it/handle/20.500.12608/77913
• https://thesis.unipd.it/handle/20.500.12608/24437
• https://thesis.unipd.it/handle/20.500.12608/3935
• https://thesis.unipd.it/handle/20.500.12608/52970
• https://thesis.unipd.it/handle/20.500.12608/38741
• https://thesis.unipd.it/handle/20.500.12608/79503
• https://thesis.unipd.it/handle/20.500.12608/76380
• https://thesis.unipd.it/handle/20.500.12608/40431
• https://thesis.unipd.it/handle/20.500.12608/59818
• https://thesis.unipd.it/handle/20.500.12608/82691