[1] Adding BRF as "legacy" single-byte encoding for braille · Issue #40 · whatwg/encoding (2016-12-20 20:13:46 +09:00) <https://github.com/whatwg/encoding/issues/40>

[2] (2011-07-16 05:29:34 +09:00) <https://www.iana.org/assignments/charset-reg/BRF>

[3] Braille ASCII - Wikipedia (2016-12-19 01:40:54 +09:00) <https://en.wikipedia.org/wiki/Braille_ASCII>