. . . . . . "A. Phillips" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "2070-1721" . . . . "index,follow" . . . . "text/html; charset=utf-8" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "rfc4646" . . . . . . . . "Tags for Identifying Languages" . . . . . . . . . . . . . . . . . . . . . . "September, 2006" . . "M. Davis" . "rfchandler version 0.2" . . . . . . . . . . . . . . . . . . . . . . . . . . "RFC 4646: Tags for Identifying Languages" . "https://www.rfc-editor.org/rfc/pdfrfc/rfc4646.txt.pdf" . . . . . . . . "10.17487/RFC4646" . .