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

\subsection*{International Journals}

\item[1] ``Regularizing thermo and magnetic contributions within nonrenormalizable theories'', SS Avancini, RLS Farias, MB Pinto, TE Restrepo, WR Tavares, Phys. Rev. D {\bf 103(5)}, 056009 (2021).

\end{itemize}
\end{document}