diff --git a/SCOR/FTD-clustering.md b/SCOR/FTD-clustering.md
index 8b13789..cbdf0a1 100644
--- a/SCOR/FTD-clustering.md
+++ b/SCOR/FTD-clustering.md
@@ -1 +1,4 @@
+# Additional Information about Cisco FTD Clustering
 
+- [Clustering Configuration and Deployment Guide](https://www.cisco.com/c/en/us/td/docs/security/firepower/623/configuration/guide/fpmc-config-guide-v623/firepower_threat_defense_cluster_for_the_fxos_chassis.html#ID-2170-000000a5)
+- [Cisco Live Presentation by Andrew Ossipov: NGFW Clustering Deep Dive - BRKSEC-3032](https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/BRKSEC-3032.pdf)