\documentclass{article}
\usepackage[latin1]{inputenc}
\usepackage{fullpage}
\begin{document}
\begin{itemize}
\section*{Papers}

\subsection*{International Journals}

\item[1] ``Revisiting the analysis of HW Virginis eclipse timing data. I. A frequentist data modeling approach and a dynamical stability analysis'', E.\,M. Esmer, O. Baştürk, T.\,C. Hinse, S.\,O. Selam, ACM Correia, Astron. Astrophys. {\bf 648}, A85 (2021).

\section*{Thesis}

\subsection*{PhD thesis}

\item[2] ``Orbital Stabilites of the Substellar Objects in Multibody Stellar Systems'', Ekrem Murat Esmer, PhD in Astrophysics, Ankara Üniversitesi. Thesis defended in Turkey on 26/08/2022 (2022).

\end{itemize}
\end{document}