rfc6497.txt:Courtney Falk:infiauto:UNKNOWN:15:feb:2012:UNKNOWN:abnf,kwd,seccons,ianacons:draft-davis-t-langtag-ext:2011-12-05:2011-07-07:63:0:0:85:148:6:2011-06-17:0::2011-06-17:20:2012-02-22:82