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Braille:
History of reading codes for the Blind (inglese)
Codice Braille (francese e inglese)
Royal Institute for the Blind (inglese)
The six magic dots of Braille (inglese)
Braille and other tactile reading and printing systems (inglese)
What is Braille? (inglese)
British and American braille codes (inglese)
Risorse internet sul Braille (inglese)
Catalogo Braille per la sc. media super.