https://app.knowbase.one/vault/rfc/docid/3987
RFC4229: HTTP Header Field Registrations
Network Working Group M. Nottingham Request for Comments: 4229 J. Mogul Category: Informational HP Labs December 2005 ...
https://app.knowbase.one/vault/rfc/docid/5755
RFC5279: A Uniform Resource Name (URN) Namespace for the 3rd Generation Partnership Project (3GPP)
Network Working Group A. Monrad Request for Comments: 5279 S. Loreto Category: Informational Ericsson July 2008 ...