diff --git a/Jenkinsfile b/Jenkinsfile
index dad7423..e74028c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -4,7 +4,7 @@ node {
     }
     
     stage('Build PDF') {
-        sh 'latexmk -xelatex -jobname=lsd-zf -f main.tex'
+        sh 'latexmk -xelatex -jobname=lsd-zf main.tex'
     }
     
     stage('Archive PDF') {
diff --git a/img/eta.png b/img/eta.png
deleted file mode 100644
index 01db191..0000000
Binary files a/img/eta.png and /dev/null differ
diff --git a/main.bib b/main.bib
deleted file mode 100644
index 7f0cfa8..0000000
--- a/main.bib
+++ /dev/null
@@ -1,7 +0,0 @@
-@misc{wernliLectureScript,
-  title   = {Lecture {{Script}}},
-  author  = {Wernli, Heini and Papritz, Lukas},
-  url     = {https://ethz.ch/content/dam/ethz/special-interest/usys/iac/iac-dam/documents/edu/courses/dynamics_of_large_scale_flow/LSD_2022.pdf},
-  urldate = {2022-09-10},
-  file    = {/Users/thisfro/Zotero/storage/ERN2IM82/Lecture Script.pdf}
-}
diff --git a/main.tex b/main.tex
index 040eb93..7922f38 100644
--- a/main.tex
+++ b/main.tex
@@ -1,5 +1,4 @@
-\documentclass[landscape]{article}
-\usepackage[utf8]{inputenc}
+\documentclass[8pt,landscape]{article}
 \usepackage{multicol}
 \usepackage{calc}
 \usepackage{bookmark}
@@ -14,15 +13,12 @@
 \usepackage{xcolor}
 \usepackage{float}
 \usepackage{apacite}
-\usepackage{physics}
-\usepackage[style=authoryear]{biblatex}
 \usepackage[
     type={CC},
     modifier={by-sa},
     version={3.0}
 ]{doclicense}
 
-\addbibresource{main.bib} 
 \graphicspath{{./img/}} 
 
 \definecolor{codegreen}{rgb}{0,0.6,0}
@@ -152,12 +148,12 @@
 \subsection{Fundamental equations}
 \subsubsection{Navier-Stokes}
 \begin{equation}
-    \frac{D\vb{u}}{Dt} = \underbrace{-\frac{1}{\rho}\nabla p}_\mathrm{Pressure} - \underbrace{(2\Omega \times \vb{u})}_\mathrm{Coriolis} - \underbrace{g'K}_\mathrm{Gravity} + \underbrace{F^{**}}_\mathrm{Viscous}
+    \frac{Du}{Dt} = \underbrace{-\frac{1}{\rho}\nabla p}_\mathrm{Pressure} - \underbrace{(2\Omega \times u)}_\mathrm{Coriolis} - \underbrace{g'K}_\mathrm{Gravity} + \underbrace{F^{**}}_\mathrm{Viscous}
 \end{equation}
 
 \subsubsection{Conservation of mass}
 \begin{equation}
-    \frac{D \rho}{Dt} + \rho(\nabla \vb{u}) = 0 
+    \frac{D \rho}{Dt} + \rho(\nabla u) = 0 
 \end{equation}
 
 \subsubsection{First law of thermodynamics}
@@ -186,30 +182,13 @@ if $\mathcal{H} = 0$, the process is \textit{adiabatic}
     \frac{D_h}{Dt} \zeta + \beta v = -f_0(\nabla_h \vec{v})
 \end{equation}
 
-\subsection{Geostrophic streamfunction}
-\begin{equation}
-    \nabla_h \psi = \zeta_G
-\end{equation}
-
-\subsection{Wave theory}
-\subsubsection*{Pertubation tendency}
-\begin{equation}
-    \psi = \underbrace{\bar{\psi}(y,z)}_\mathrm{Mean \, meridional \, flow} + \underbrace{\psi'(x,y,z,t)}_\mathrm{Pertubation}
-\end{equation}
-assuming $|\psi'| \ll |\bar{\psi}|$
-
-
-\begin{equation}
-    \bigg(\frac{\partial}{\partial t} + \mathcal{U} \bigg) q' + v'(\frac{\partial}{\partial y} \bar{q} + \beta) = 0
-\end{equation}
-with $\mathcal{U} = - \frac{\partial \bar{\psi}}{\partial y}$
-
 \section{Concepts}
 \subsection{Thermal wind}
 \textit{Thermal wind} describes the vertical change of geostrophic (i.e. horizontal) wind
 \begin{equation}
-    \frac{\partial}{\partial z} \vb{v_G} = \bigg(\frac{1}{f}\frac{g}{\theta_0}\bigg)(\vb{k} \times \nabla_h \theta^*)
+    \frac{\partial}{\partial z} v_G = \bigg(\frac{1}{f}\frac{g}{\theta_0}\bigg)(k \times \nabla_h \theta^*)
 \end{equation}
+
 \subsection{$Q$-Vector}
 The $Q$-Vector indicates if there is cyclogenesis ($\mathcal{F} < 0$, $\mathcal{F} \sim \nabla_h Q$)
 \vspace{2mm} \\
@@ -220,28 +199,10 @@ How to determine the $Q$-Vector on weather charts:
         \item Large temperature gradient
         \item Strong wind change
     \end{itemize}
-    \item Determine wind-change vector along $\eta$ (warm to the right, see Figure~\ref{Q-eta})
-    \item Rotate that vector by $-90^\circ$
+    \item Determine wind-change vector
+    \item Rotate that vector by $+90^\circ$
 \end{enumerate}
 
-\begin{figure}[H]
-    \centering
-    \includegraphics[width=0.1\textwidth]{eta.png}
-    \caption{Direction of $\eta$}
-    \label{Q-eta}
-\end{figure}
-
-\begin{equation}
-    \vb{Q} = -\frac{g}{\theta_0}|\nabla_h\theta^{*}|(\vb{k} \wedge \frac{\partial}{\partial \xi}\vb{v_G})
-\end{equation}
-
-\subsection{PV streamer}
-\begin{itemize}
-    \item is an upper level positive PV anomaly
-    \item induces cyclonal flow
-\end{itemize}
-
-
 \scriptsize
 
 \section*{Copyleft}
@@ -252,11 +213,14 @@ This document is released under (CC BY-SA 3.0) \\
 \faGit \kern 0.88em \url{https://git.thisfro.ch/thisfro/lsd-zf} \\
 Jannis Portmann, HS22
 
-\printbibliography
+\section*{References}
+\begin{enumerate}
+    \item Script: LSD\_22.pdf
+\end{enumerate}
 
 \section*{Image sources}
 \begin{itemize}
-    \item Figure~\ref{Q-eta} (Skript, \cite{wernliLectureScript})
+    \item Bild
 \end{itemize}
 
 \end{multicols*}