%&LaTeX
\documentclass{article}

\usepackage{soul}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Hong_etal1994} Hong K, Marsh PF, Geok-Ing Ng, Pavlidis D, Hong C-H. Optimization of MOVPE grown In$_{x}$Al$_{1-x}$As/In$_{0.53}$Ga$_{0.47}$As planar heteroepitaxial Schottky diodes for terahertz applications. IEEE Trans. Electron Devices. 1994;41(9):1489--97.

\end{thebibliography}

\end{document}

