diff --git a/bibliography.bib b/bibliography.bib
index 4bd4517..b5f20c4 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -226,3 +226,13 @@
  publisher = {ACM},
  address = {New York, NY, USA},
 } 
+@book{ieee_90,
+    author = {Electrical, Institute O. and (ieee), Electronics E.},
+    citeulike-article-id = {485989},
+    keywords = {bibtex-import},
+    posted-at = {2006-01-30 15:35:50},
+    priority = {2},
+    title = {{IEEE 90: IEEE Standard Glossary of Software Engineering Terminology}},
+    year = {1990}
+}
+
diff --git a/report.lyx b/report.lyx
index b9866fb..0c30952 100644
--- a/report.lyx
+++ b/report.lyx
@@ -3995,13 +3995,27 @@ Techniques for ensuring reliability
 
 \begin_layout Standard
 One of the main goals of the project is to achieve high reliability.
- A highly reliable application is one that crashes very, very rarely 
-\begin_inset Note Note
-status open
+ The term 
+\begin_inset Quotes eld
+\end_inset
 
-\begin_layout Plain Layout
-CITATION NEEDED
-\end_layout
+reliable system
+\begin_inset Quotes erd
+\end_inset
+
+ is defined by the IEEE as a system with 
+\begin_inset Quotes eld
+\end_inset
+
+the ability of a system or component to perform its required functions under
+ stated conditions for a specified period of time
+\begin_inset Quotes erd
+\end_inset
+
+ 
+\begin_inset CommandInset citation
+LatexCommand citet
+key "ieee_90"
 
 \end_inset