-[9] [CITE@en[RFC 2327: SDP: Session Description Protocol]], [TIME[2023-12-02T11:54:22.000Z]], [TIME[2023-12-02T12:20:04.120Z]] <https://www.rfc-editor.org/rfc/rfc2327>
-
[10] [CITE[RFC Errata Report » RFC Editor]], [TIME[2023-12-02T12:21:18.000Z]] <https://www.rfc-editor.org/errata/rfc2327>



-[1] [CITE@en[RFC 4566: SDP: Session Description Protocol]], [TIME[2023-12-02T07:30:22.000Z]], [TIME[2023-12-02T11:59:40.093Z]] <https://www.rfc-editor.org/rfc/rfc4566.html#section-5.9>
- [3] [CITE[RFC Errata Report » RFC Editor]], [TIME[2023-12-02T12:15:36.000Z]] <https://www.rfc-editor.org/errata/rfc4566>

[2] [[NTP time]]