diff --git a/11-introduction/introduction.tex b/11-introduction/introduction.tex
index e0859ae..d64f000 100644
--- a/11-introduction/introduction.tex
+++ b/11-introduction/introduction.tex
@@ -21,12 +21,14 @@ Explain what are the challenges of using wearable haptics with augmented reality
 
 \sectionstartoc{Thesis Objectives}
 
-Objective of the thesis: To understand how visual and wearable vibrotactile haptic feedback compare or complement each other in user perception and experience of touch in augmented reality.
+Objective of the thesis: To understand how visual and wearable vibrotactile haptic feedback compare or complement each other in user perception and experience of touch in augmented reality. Integrate visuo-haptic augmentations to improve the user perception and interaction with the augmented environment.
 
 Two main axes of research: (I) augmenting the visuo-haptic texture perception of tangible surfaces, and (II) improving virtual object manipulation with visuo-haptic augmentations of the hand.
 
 Touch allows to perceive the environment and interact with it, thus it motivates these two axes of research.
 
+% it's a mix of augmented reality, virtual reality, vibrotactile feedback for visuo-tactile augmentation of the real world. Such multimodal rendering raise many questions on how to design, how renderings interact and complete each other, to give one perception
+
 \sectionstartoc{Thesis Contributions}
 
 Present the contributions and structure of the thesis.
diff --git a/12-related-work/related-work.tex b/12-related-work/related-work.tex
index 0a2050f..9681ad9 100644
--- a/12-related-work/related-work.tex
+++ b/12-related-work/related-work.tex
@@ -12,12 +12,26 @@
 
 \subsection{Vibrotactile Renderings}
 
+\subsubsection{Contact Renderings}
+
+\subsubsection{Texture Renderings}
+
 \section{Augmented Reality}
 
-\subsection{Capabilities and Limitations}
+\subsection{The Sense of Vision}
 
-\subsection{Virtual Hand Rendering in AR}
+\subsection{Principles, Capabilities and Limitations}
+
+\subsection{Perception in Augmented Reality}
+
+\subsection{Interacting with Virtual and Augmented Content}
+
+\subsubsection{Virtual Hand Rendering in AR}
 
 \section{Wearable Haptic Feedback in AR}
 
+\subsection{Enhancing the Perceptions}
+
+\subsection{Improving the Interactions}
+
 \section{Conclusion}
\ No newline at end of file
diff --git a/references.bib b/references.bib
index 08db2b2..88622b7 100644
--- a/references.bib
+++ b/references.bib
@@ -2,7 +2,7 @@
   title = {Wearable {{Haptic Systems}} for the {{Fingertip}} and the {{Hand}}: {{Taxonomy}}, {{Review}}, and {{Perspectives}}},
   shorttitle = {Wearable {{Haptic Systems}} for the {{Fingertip}} and the {{Hand}}},
   author = {Pacchierotti, Claudio and Sinclair, Stephen and Solazzi, Massimiliano and Frisoli, Antonio and Hayward, Vincent and Prattichizzo, Domenico},
-  date = {2017-10},
+  date = {2017},
   journaltitle = {IEEE Trans. Haptics},
   volume = {10},
   number = {4},
diff --git a/utils b/utils
index 8338d17..b9b8d76 160000
--- a/utils
+++ b/utils
@@ -1 +1 @@
-Subproject commit 8338d17edb9c4bad30ddd5f200cceaa9552cd4c6
+Subproject commit b9b8d7645fb1c4c6cfe22399a064f6551512f0bf