An RFC from the IETF, see also the MIME standard,
- Full text of RFC 2183 Communicating Presentation Information in Internet Messages: The Content-Disposition Header Field. R. Troost, S. Dorner, K. Moore. August 1997. (Format: TXT=23150 bytes) (Updates RFC 1806) (Updated by RFC 2184, RFC 2231) (Status: PROPOSED STANDARD)