ISO/IEC 646 (based on ASCII) which was based on the 26 letters of the Englishalphabet and previous telecommunication standards Ð(U+00D0)是法罗语、冰岛语字母、Đ(U+0
symbol for this vowel to the alphabet or chart. Labov, William; Ash, Sharon; Boberg, Charles, The Atlas of North American English, Berlin: Mouton-de Gruyter