diff --git a/report.lyx b/report.lyx
index 34016d7..13761aa 100644
--- a/report.lyx
+++ b/report.lyx
@@ -740,21 +740,18 @@ the nine nines
 \begin_inset Formula $99.999999999\%$
 \end_inset
 
- of availability, or roughly 
+ of availability
+\begin_inset CommandInset citation
+LatexCommand citet
+key "Armstrong03"
+
+\end_inset
+
+, or roughly 
 \begin_inset Formula $15ms$
 \end_inset
 
- downtime in a year 
-\begin_inset Note Note
-status open
-
-\begin_layout Plain Layout
-Citation needed
-\end_layout
-
-\end_inset
-
-.
+ downtime in a year.
  The level of instability and bad fault tolerance seen in the game server
  industry would not have been accepted in the telecoms industry.
  This level of instability should not be accepted in the game server industry