From 2c0161afb1c6a586eab897af57d3288f74c3ddb5 Mon Sep 17 00:00:00 2001
From: Roland Hieber <rohieb@rohieb.name>
Date: Wed, 15 Jan 2014 02:35:07 +0100
Subject: [PATCH] cite GoF for Observer pattern

---
 biblio.bib   | 9 +++++++++
 sec-xmpp.tex | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/biblio.bib b/biblio.bib
index da088bb..d42cdff 100644
--- a/biblio.bib
+++ b/biblio.bib
@@ -288,3 +288,12 @@
   url="http://www.ietf.org/rfc/rfc1035.txt",
 }
 
+@book{GOF95,
+	author = "Gamma, E. and Helm, R. and Johnson, R. and Vlissides, J.",
+	interhash = "666db7e026c02bfa3e89b7b2772d18a2",
+	intrahash = "ee90f849e019	01dd605163c365d247fa",
+	keywords = "patterns object-oriented",
+	publisher = "Addison Wesley",
+	title = "{Design Patterns - Elements of Reus	able Object-Oriented Software}",
+	year = 1995
+}
diff --git a/sec-xmpp.tex b/sec-xmpp.tex
index d3ecf61..213f3c2 100644
--- a/sec-xmpp.tex
+++ b/sec-xmpp.tex
@@ -95,7 +95,7 @@ and several ``away'' or ``do not disturb'' states), a user needs to subscribe to
 the other user's status. The mechanism behind this is called
 \term{Publish-Subscribe} and is specified in XEP-0060~\cite{xep0060}. It can
 be used to notify interested users about changes in personal information, and
-implements the well-known Observer pattern.
+implements the well-known Observer pattern~\cite{GOF95}.
 
 A user publishes information by creating a \term{node} on the XMPP server, which
 acts as a handle for the data. Interested users can then query the server for
-- 
2.20.1