diff --git a/README.md b/README.md
index d784e74..f5b52c3 100644
--- a/README.md
+++ b/README.md
@@ -18,3 +18,5 @@ Desired features:
 
 ## Resources
 * [AXI4 Protocol Specification](https://developer.arm.com/documentation/ihi0022/e/AMBA-AXI3-and-AXI4-Protocol-Specification?lang=en)
+* [JTAG Bus Description](https://web.archive.org/web/20230314233136/http://www.interfacebus.com/Design_Connector_JTAG_Bus.html)
+* [1149.1-2013 - IEEE Standard for Test Access Port and Boundary-Scan Architecture](https://ieeexplore.ieee.org/document/6515989)