EDIT 25th letter of Russian and Belorusian alphabets and lower case letter corresponding to the upper case Ч (U+0427)

International ISO (likewise, German DIN) standard transliteration: /č/ (U+010D), e.g. М.С. Горбачёв (*1931, Secretary General of the CPSU 1985-91, Soviet President 1990-91, Nobel peace prize laureate 1990) - M. Gorbačёv
English BSI and ALA standards transliteration: /ch/ - Gorbachev

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