diff --git a/applications/lofar2/doc/sdp_timing_closure.txt b/applications/lofar2/doc/sdp_timing_closure.txt
index 86c6d5c655b93772059c27feb2efa5b39cd9e932..a6067d25de915855fc7ab8c401262e8eccbf5f6b 100644
--- a/applications/lofar2/doc/sdp_timing_closure.txt
+++ b/applications/lofar2/doc/sdp_timing_closure.txt
@@ -1,3 +1,7 @@
+Titel: SDP Firmware timing closure investinagtions and solutions
+Author: Eric Kooistra
+References:
+  [1] https://support.astron.nl/confluence/display/SBe/Asynchronous+reset+synchronization
 
 1) General:
 * In L2SDP-1005 (19 aug 2024) the common_areset.vhd was improved with g_tree_len = 1. From Eric to Reinier in