diff --git a/README.adoc b/README.adoc
index 15c96cb..cdf9cc7 100644
--- a/README.adoc
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@@ -18464,6 +18464,10 @@ The following Raspberry Pi bibliography helped us get this sample up and running
 
 The best article to understand spinlocks is: https://eli.thegreenplace.net/2018/basics-of-futexes/
 
+====== ARM YIELD instruction
+
+https://stackoverflow.com/questions/59311066/how-does-the-arm-yield-instruction-inform-other-threads-that-they-could-start-a
+
 ===== ARM LDAXR and STLXR instructions
 
 Can be used to implement atomic variables, see also: