-\section{Contributions}\label{sec:contributions}
-This section provides a thorough overview of the relation to publications and the scientific contributions of the episodes and chapters.
+\subsection{Other \texorpdfstring{\glsxtrshort{TOP}}{TOP} languages}
+While \gls{ITASK} conceived \gls{TOP}, it is not the only \gls{TOP} system.
+Some \gls{TOP} systems arose from Master's and Bachelor's thesis projects.
+For example, \textmu{}Task \citep{piers_task-oriented_2016}, a \gls{TOP} language for modelling non-interruptible embedded systems in \gls{HASKELL}, and LTasks \citep{van_gemert_task_2022}, a \gls{TOP} language written in the dynamically typed programming language {LUA}.
+Some \gls{TOP} languages were created to solve a practical problem.Toppyt \citep{lijnse_toppyt_2022} is a general purpose \gls{TOP} language written in \gls{PYTHON} used to host frameworks for modelling C2 systems, and hTask \citep{lubbers_htask_2022}, a vessel for experimenting with asynchronous \glspl{SDS}.
+Finally there are \gls{TOP} languages with strong academic foundations.
+\Gls{TOPHAT} is a fully formally specified \gls{TOP} language designed to capture the essence of \gls{TOP} formally \citep{steenvoorden_tophat_2019}.
+Such a formal specification allows for symbolic execution, hint generation, but also the translation to \gls{ITASK} for actually performing the work \citep{steenvoorden_tophat_2022}.
+
+\section{Contributions}%
+\label{sec:contributions}
+\todo{Dit heb ik sterk ingekort. Ok\'e?}
+This section provides a thorough overview of the relation between the scientific publications and the episodes and chapters.