• https://aisberg.unibg.it/handle/10446/306516
• https://aisberg.unibg.it/handle/10446/235553
• https://aisberg.unibg.it/handle/10446/297845
• https://aisberg.unibg.it/handle/10446/232470
• https://aisberg.unibg.it/handle/10446/310088
• https://aisberg.unibg.it/handle/10446/260852