ISO 8879:1986 Character Entities Nineteen sets: Added Math Symbols: Arrow Relations, Added Math Symbols: Binary Operators, Added Math Symbols: Delimiters, Added Math Symbols: Negated Relations, Added Math Symbols: Ordinary, Added Math Symbols: Relations, Box and Line Drawing, Russian Cyrillic, Non-Russian Cyrillic, Diacritical Marks, Greek Letters, Monotoniko Greek, Greek Symbols, Alternative Greek Symbols, Added Latin 1, Added Latin 2, Numeric and Special Graphic, Publishing, General Technical. Available as separate disk files in a ZIP archive, [http://www.sil.org/sgml/ISOEnts.zip] or as a single concatenated text file ]http://www.sil.org/sgml/ISOEnts.txt]. Source: the SGML Repository [ftp://ftp.ifi.uio.no/pub/SGML/ENTITIES].