diff --git a/11-introduction/introduction.tex b/11-introduction/introduction.tex
index 2255279..21349c3 100644
--- a/11-introduction/introduction.tex
+++ b/11-introduction/introduction.tex
@@ -9,7 +9,7 @@ Touch is the only sense that allows not only to perceive the environment, but al
 
 \subsectionstartoc{Wearable Haptics and the Augmentation of Touch}
 
-Present what is wearable haptics, how they can be used to augment the sense of touch~\cite{pacchierotti2017wearable}. Detail then how they have been used with virtual reality, but how little they have been used with augmented reality.\CP{Add a reference to the survey of wearable haptics in AR.}
+Present what is wearable haptics, how they can be used to augment the sense of touch~\cite{pacchierotti2017wearable}. Detail then how they have been used with virtual reality, but how little they have been used with augmented reality.
 
 \subsectionstartoc{Augmented Reality is Mostly Visual}