diff --git a/doc/Introduction.tex b/doc/Introduction.tex
index 1304068..847f682 100644
--- a/doc/Introduction.tex
+++ b/doc/Introduction.tex
@@ -10,14 +10,38 @@ thesis, the motivation and problemes that we address.
 % ----------------------------------------------------------------------
 \section{\label{introduction:motivation}Motivation}
 The Internet has almost completely run out of public IPv4 space. The
-Regional Internet Registries
+5 Regional Internet Registries (RIRs) report IPv4 exhaustion world wide
 (\cite{ripe_exhaustion},
 \cite{apnic_exhaustion},
-\cite{lacnic:_ipv4_deplet_phases}
-is common knowledge
+\cite{lacnic:_ipv4_deplet_phases},
+\cite{afrinic:_afrin_ipv4_exhaus},
+\cite{arin:_ipv4_addres_option}) and LACNIC project complete
+exhaustion for 2020 (see figure \ref{fig:lacnicexhaust}).
+
+\begin{figure}[h]
+  \includegraphics[scale=0.7]{lacnicdepletion}
+  \centering
+  \caption{LACNIC Exhaustion projection,
+    \cite{lacnic:_ipv4_deplet_phases}}
+  \label{fig:lacnicexhaust}
+\end{figure}
+
+On the other hand IPv6 adoption grows significantly, with at least
+three contries (India, US, Belgium) surpassing 50\% adoption
+(\cite{akamai:_ipv6_adopt_visual},
+\cite{vyncke:_ipv6_deploy_aggreg_status}).
+
+\cite{cisco:_ipv6}). Traffic from Google users reaches almost 30\% as
+of 2019-08-08 (\cite{google:_ipv6_googl}).
+
+\begin{figure}[h]
+  \includegraphics[scale=0.2]{googlev6}
+  \centering
+  \caption{Google IPv6 Statistics,
+    \cite{google:_ipv6_googl}}
+  \label{fig:googlev6}
+\end{figure}
 
-
-IPv6 deployments grow \cite{google:_ipv6_googl}.
 Make it easier
 take away burden
 
diff --git a/doc/images/googlev6.png b/doc/images/googlev6.png
new file mode 100644
index 0000000..97cdbbc
Binary files /dev/null and b/doc/images/googlev6.png differ
diff --git a/doc/images/lacnicdepletion.png b/doc/images/lacnicdepletion.png
new file mode 100644
index 0000000..57f853e
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diff --git a/doc/preamble.tex b/doc/preamble.tex
index a572e55..b780ea9 100644
--- a/doc/preamble.tex
+++ b/doc/preamble.tex
@@ -14,7 +14,7 @@
             pdftex}
 
 \usepackage[pdftex]{color,graphicx} % pdftex does not read eps files -> use epstopdf to convert files
-\graphicspath{{Figures/},{logos/}}
+\graphicspath{{Figures/},{logos/},{images/}}
 
 \usepackage{caption}
 \usepackage{subcaption} % caption/subcaption replaces subfigure, which is deprecated
diff --git a/doc/refs/refs.bib b/doc/refs/refs.bib
index 76bb27c..73626e7 100644
--- a/doc/refs/refs.bib
+++ b/doc/refs/refs.bib
@@ -1,16 +1,11 @@
-@BOOK{Lamport:LaTeX,
-    AUTHOR = "Leslie Lamport",
-    TITLE = "LaTeX User's Guide and Document Reference Manual",
-    PUBLISHER = "Addison-Wesley Publishing Company",
-    ADDRESS = "Reading, Massachusetts",
-    YEAR = "1986"}
-
 @Misc{ripe_exhaustion,
   author =    {RIPE},
+  title = {IPv4 Exhaustion},
   howpublished = {\url{https://www.ripe.net/publications/ipv6-info-centre/about-ipv6/ipv4-exhaustion}}}
 
 @Misc{apnic_exhaustion,
   author =    {APNIC},
+  title = {APNIC’s IPv4 pool status},
   howpublished = {\url{https://www.apnic.net/community/ipv4-exhaustion/graphical-information/}}}
 
 @Misc{google:_ipv6_googl,
@@ -22,3 +17,28 @@
   author =    {LACNIC},
   title =     {IPv4 Depletion Phases},
   howpublished = {\url{https://www.lacnic.net/1039/1/lacnic/ipv4-depletion-phases}}}
+
+@Misc{afrinic:_afrin_ipv4_exhaus,
+  author =    {AFRINIC},
+  title =     {AFRINIC IPv4 Exhaustion},
+  howpublished = {\url{https://afrinic.net/exhaustion}}}
+
+@Misc{arin:_ipv4_addres_option,
+  author =    {ARIN},
+  title =     {IPv4 Addressing Options},
+  howpublished = {\url{https://www.arin.net/resources/guide/ipv4/}}}
+
+@Misc{vyncke:_ipv6_deploy_aggreg_status,
+  author =    {Eric Vyncke},
+  title =     {IPv6 Deployment Aggregated Status},
+  howpublished = {\url{https://www.vyncke.org/ipv6status/}}}
+
+@Misc{cisco:_ipv6,
+  author =    {CISCO},
+  title =     {6lab - The place to monitor IPv6 adoption},
+  howpublished = {\url{https://6lab.cisco.com/stats/}}}
+
+@Misc{akamai:_ipv6_adopt_visual,
+  author =    {Akamai},
+  title =     {IPv6 Adoption Visualization},
+  howpublished = {\url{https://www.akamai.com/us/en/resources/our-thinking/state-of-the-internet-report/state-of-the-internet-ipv6-adoption-visualization.jsp#countries}}}