\documentclass[a4paper,12pt]{report}
\usepackage[left=3cm,right=2.5cm,top=2.5cm,bottom=2.5cm]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english,greek]{babel}
\usepackage{amsmath,amsfonts,amssymb}
\usepackage[parfill]{parskip}
\usepackage[unicode]{hyperref}
\usepackage{bookmark}
\usepackage{cite}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{float}
\usepackage{siunitx}
\usepackage{color}
\usepackage{kmath,kerkis}
\graphicspath{{../PICS/}}
\def\tl{\textlatin}
\def\tg{\textgreek}
\begin{document}
\include{cover}
\title{Τίτλος διπλωματικής}
\author{Όνομα Επίθετο \\
\href{mailto:empty@auth.gr}{\tl{empty@auth.gr}}}
\maketitle
\tableofcontents
\thispagestyle{empty}
\include{chapter1}
\appendix
\include{acronyms}
\selectlanguage{english}
\bibliographystyle{IEEEtran}
\bibliography{IEEEabrv,references}
\end{document}
