https://app.knowbase.one/vault/rfc/docid/1976
RFC1766: Tags for the Identification of Languages
Network Working Group H. Alvestrand Request for Comments: 1766 UNINETT Category: Standards Track March 1995 Tags for the Identification of Languages Status of this ...
https://app.knowbase.one/vault/rfc/docid/3660
RFC3282: Content Language Headers
Network Working Group H. Alvestrand Request for Comments: 3282 Cisco Systems Obsoletes: 1766 May 2002 Category: Standards Track Content Language Headers...