[MSDN Library June 1998] LookupType 3: Alternate Substitution Subtable (100%)
MSDN Library Visual Studio 6.0 > Specifications > Applications > TrueType Open Font > 3. The Glyph Substitution Table (GSUB)
[MSDN Library June 1998] LookupType 1: Single Substitution Subtable (95.6521739130435%)
MSDN Library Visual Studio 6.0 > Specifications > Applications > TrueType Open Font > 3. The Glyph Substitution Table (GSUB)
[MSDN Library June 1998] LookupType 2: Multiple Substitution Subtable (95.6521739130435%)
MSDN Library Visual Studio 6.0 > Specifications > Applications > TrueType Open Font > 3. The Glyph Substitution Table (GSUB)
[MSDN Library June 1998] LookupType 5: Contextual Substitution Subtable (95.2127659574468%)
MSDN Library Visual Studio 6.0 > Specifications > Applications > TrueType Open Font > 3. The Glyph Substitution Table (GSUB)
[MSDN Library June 1998] LookupType 4: Ligature Substitution Subtable (95.1086956521739%)
MSDN Library Visual Studio 6.0 > Specifications > Applications > TrueType Open Font > 3. The Glyph Substitution Table (GSUB)