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C’è un libro intitolato “Cartografia di una valle alpina. La valle di Blenio (1500-1865)”, appena pubblicato per Casagrande, frutto di una lunga ricerca svolta da Stefano Bolla che ripercorre quasi 4 secoli di storia della valle del Sole attraverso le sue rappresentazioni cartografiche. Le sue mappe. Ne abbiamo parlato con l’autore.
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https://www.rsi.ch/s/703908
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