From d158d2037c4577f2d7159a7d68dff0b2a0b05647 Mon Sep 17 00:00:00 2001
From: Jonas Wielicki <j.wielicki@sotecware.net>
Date: Wed, 4 Oct 2017 15:24:52 +0200
Subject: [PATCH] Add BT.601 reference to xep.ent

---
 xep.ent | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xep.ent b/xep.ent
index 74f3b71f..f4cc587f 100644
--- a/xep.ent
+++ b/xep.ent
@@ -372,6 +372,7 @@ THE SOFTWARE.
 <!ENTITY E.164 "<span class='ref'><link url='http://en.wikipedia.org/wiki/E.164'>ITU E.164</link></span> <note>ITU Recommendation E.164/I.331: The International Public Telecommunication Numbering Plan (1997). This specification is not freely available; a short summary is located at &lt;<link url='http://en.wikipedia.org/wiki/E.164'>http://en.wikipedia.org/wiki/E.164</link>&gt;.</note>" >
 <!ENTITY X.500 "<span class='ref'><link url='http://www.itu.int/rec/T-REC-X.500-200102-I/en'>X.500</link></span> <note>X.500: The Directory: Overview of concepts, models and service &lt;<link url='http://www.itu.int/rec/T-REC-X.500-200102-I/en'>http://www.itu.int/rec/T-REC-X.500-200102-I/en</link>&gt;.</note>" >
 <!ENTITY X.841 "<span class='ref'><link url='http://www.itu.int/rec/T-REC-X.841-200010-I/en'>X.841</link></span> <note>X.841: Security techniques - Security information objects for access control &lt;<link url='http://www.itu.int/rec/T-REC-X.841-200010-I/en'>http://www.itu.int/rec/T-REC-X.841-200010-I/en</link>&gt;.</note>" >
+<!ENTITY BT.601 "<span class='ref'><link url='https://www.itu.int/rec/R-REC-BT.601-7-201103-I/en'>BT.601</link></span> <note>BT.601: Studio encoding parameters of digital television for standard 4:3 and wide screen 16:9 aspect ratios &lt;<link url='https://www.itu.int/rec/R-REC-BT.601-7-201103-I/en'>https://www.itu.int/rec/R-REC-BT.601-7-201103-I/en</link>&gt;</note>">
 
 <!-- some other specs -->