diff --git a/tex/latex/ngexrcs/ngexrcs.cls b/tex/latex/ngexrcs/ngexrcs.cls
index ba90825..09f75ea 100644
--- a/tex/latex/ngexrcs/ngexrcs.cls
+++ b/tex/latex/ngexrcs/ngexrcs.cls
@@ -9,7 +9,7 @@
 \ProcessOptions\relax
 
 % More declarations %
-\LoadClass{scrartcl}
+\LoadClass[sfdefaults=false, parskip=half]{scrartcl}
 
 \KOMAoptions{mpinclude=true}
 \recalctypearea
@@ -36,9 +36,6 @@
 \addtokomafont{date}{\sffamily}
 \addtokomafont{publishers}{\sffamily}
 
-% Use serif font for headings
-\addtokomafont{disposition}{\rmfamily}
-
 % Let sections be formated as in: Aufgabe 1 -- Section title 
 \renewcommand*{\sectionformat}{Aufgabe \thesection\autodot\enskip--\enskip}
 
diff --git a/tex/latex/ngsummary/ngsummary.cls b/tex/latex/ngsummary/ngsummary.cls
index 91d834c..37631cb 100644
--- a/tex/latex/ngsummary/ngsummary.cls
+++ b/tex/latex/ngsummary/ngsummary.cls
@@ -10,9 +10,7 @@
 
 % More declarations %
 \LoadClass[sfdefaults=false, parskip=half]{scrreprt}
-
-%\KOMAoptions{mpinclude=true}
-%\recalctypearea
+\RequirePackage{scrlayer-scrpage}
 
 \RequirePackage{ngutils}
 
@@ -36,12 +34,6 @@
 \addtokomafont{date}{\sffamily}
 \addtokomafont{publishers}{\sffamily}
 
-% Use serif font for headings
-% \addtokomafont{disposition}{\rmfamily}
-
-% Use serif italic for description labels
-\addtokomafont{descriptionlabel}{\normalfont \itshape}
-
 \DeclareNewTOC
 [
 	type=algorithm,
diff --git a/tex/latex/ngutils/ngutils.sty b/tex/latex/ngutils/ngutils.sty
index 69cc21c..1852d18 100644
--- a/tex/latex/ngutils/ngutils.sty
+++ b/tex/latex/ngutils/ngutils.sty
@@ -28,6 +28,8 @@
 }
 {}
 
+\newcommand{\argmax}{\mathop{\mathrm{arg\,max}}}
+\newcommand{\argmin}{\mathop{\mathrm{arg\,min}}}
 \newcommand{\seilpmi}{\Longleftarrow}
 
 \newcommand{\NN}{\mathbb{N}}
@@ -37,17 +39,25 @@
 \newcommand{\CC}{\mathbb{C}}
 \newcommand{\PP}{\mathbb{P}}
 
+\newcommand{\pot}{\mathcal{P}}
+
+\newcommand{\REC}{\mathrm{REC}}
+\newcommand{\RE}{\mathrm{RE}}
+\newcommand{\EA}{\mathrm{EA}}
+\newcommand{\DEA}{\mathrm{DEA}}
+\newcommand{\NEA}{\mathrm{DEA}}
+
 \newcommand{\Pe}{\mathrm{P}}
 \newcommand{\NPe}{\mathrm{NP}}
 
 \newcommand{\Oh}{\mathcal{O}}
 \newcommand{\oh}{\scriptstyle{\mathcal{O}}}
 
-\newcommand{\Eh}{\mathop{\mathrm{E}}}
-\newcommand{\Var}{\mathop{\mathrm{Var}}}
-\newcommand{\pot}{\mathop{\mathcal{P}}}
-\newcommand{\argmax}{\mathop{\mathrm{arg\,max}}}
-\newcommand{\argmin}{\mathop{\mathrm{arg\,min}}}
+\newcommand{\indeg}{\mathrm{indeg}}
+\newcommand{\outdeg}{\mathrm{outdeg}}
+
+\newcommand{\Eh}{\mathrm{E}}
+\newcommand{\Var}{\mathrm{Var}}
 
 \newcommand{\parens}[1]{\left(#1\right)}
 \newcommand{\brackets}[1]{\left[#1\right]}
@@ -55,7 +65,7 @@
 \newcommand{\angled}[1]{\left\langle#1\right\rangle}
 
 \newcommand{\suchthat}{\;\middle\vert\;}
-
+\newcommand{\set}[1]{\braces{#1}}
 \newcommand{\tup}[1]{\parens{#1}}
 \newcommand{\interval}[2][b]{
 	\if\detokenize{a}\detokenize{#1}%
@@ -71,20 +81,12 @@
 		\left]#2\right]
 	\fi
 }
-\newcommand{\set}[2][]{
-	\ifx&#1&
-		\braces{#2}
-	\else
-		\braces{#1 \suchthat #2}
-	\fi
-}
 \newcommand{\arr}[1]{\angled{#1}}
 \newcommand{\abs}[1]{\left\vert#1\right\vert}
 \newcommand{\norm}[1]{\left\Vert#1\right\Vert}
 \newcommand{\ceil}[1]{\left\lceil#1\right\rceil}
 \newcommand{\floor}[1]{\left\lfloor#1\right\rfloor}
 
-% \newcommand{\alg}[2]{{\normalfont\scshape#1}{\normalfont(#2)}}
 \newcommand{\algt}[1]{{\normalfont\scshape#1}}
 
 \makeatletter
@@ -105,53 +107,3 @@
 	\end{minipage}
 }
 
-% \newlength{\theoremskip}
-% \setlength{\theoremskip}{6em}
-%
-% \newcommand{\theoremfont}{\normalfont\bfseries}
-% \newcommand{\definitionfont}{\normalfont\bfseries}
-%
-% \newenvironment{theoremic}[3][]{
-% 	{#3 #2 #1}
-% 	\hfill
-% 	\begin{minipage}[t]{\the\dimexpr\linewidth-\theoremskip\relax}
-% 		}{
-% 	\end{minipage}
-% }
-%
-% \newenvironment{theorem}[1][]{
-% 	\begin{theoremic}[#1]{Satz}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%
-% \newenvironment{lemma}[1][]{
-% 	\begin{theoremic}[#1]{Lemma}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%
-% \newenvironment{corrolary}[1][]{
-% 	\begin{theoremic}[#1]{Korall}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%
-% \newenvironment{proof}[1][]{
-% 	\begin{theoremic}[#1]{Beweis}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%
-% \newenvironment{definition}[1][]{
-% 	\begin{theoremic}[#1]{Definition}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%
-% \newenvironment{example}[1][]{
-% 	\begin{theoremic}[#1]{Beispiel}{\theoremfont}
-% 		}{
-% 	\end{theoremic}
-% }
-%