\documentclass[12pt,a4paper]{report}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\linespread{1.5}
\usepackage{geometry}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{float}
\usepackage{graphicx}
\numberwithin{equation}{chapter}
\geometry{left=25mm,right=20mm,top=20mm,bottom=20mm}
\setlength{\parindent}{0pt}
\setlength{\parskip}{9pt}
\usepackage{hyperref}
\hypersetup
{
pdftitle = {TITLE OF THE THESIS},
pdfauthor = {AUTHOR},
pdfstartview = {XYZ null null 1.00},
colorlinks = {true},
linkcolor = black,
urlcolor = blue,
citecolor = blue
}
\usepackage{siunitx}
\sisetup
{
detect-all,%detect fonts
}
\usepackage{libertine}
\usepackage[libertine]{newtxmath}
\begin{document}
\include{cover_sheet}
\include{abstract}
\tableofcontents
\listoffigures
\listoftables
\include{preamble}
\include{methods}
\include{discussion}
\include{summary_outlook}
\bibliographystyle{elsarticle-num}
\bibliography{references}
\include{table_of_abbreviations}
\include{appendix}
\end{document}
