[REFS[
- [1]
[CITE[Rich Text Format (RTF) Specification, version 1.6]] <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnrtfspec/html/rtfspec.asp>
- [2]
[CITE@en[Rich Text Format - Wikipedia, the free encyclopedia]] ([TIME[2007-07-01 04:18:31 +09:00]] 版) <http://en.wikipedia.org/wiki/Rich_Text_Format>
]REFS]