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diff --git a/openpower/sv/overview.mdwn b/openpower/sv/overview.mdwn
index 84b22d43a5a6d2b25c46bacae442d46c974cc68b..ca6aacdc5bd19b9f64f3bc1cc863160ce756ff90 100644 (file)
--- a/openpower/sv/overview.mdwn
+++ b/openpower/sv/overview.mdwn
@@ -20,6 +20,9 @@ Links:
 * [x86 REP instruction](https://c9x.me/x86/html/file_module_x86_id_279.html):
   a useful way to quickly understand that the core of the SV concept
   is not new.
+* [Article about register tagging](http://science.lpnu.ua/sites/default/files/journal-paper/2019/jul/17084/volum3number1text-9-16_1.pdf) showing
+  that tagging is not a new idea either. Register tags
+  are also used in the Mill Architecture.
 
 
 [[!toc]]