%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Kroug2001} Kroug, M. (2001). \textit{Hot electron bolometric mixers for a quasi-optical terahertz receiver}. Ph.D. thesis, , Chalmers University of Technology, Gothenburg, Sweden.

\end{thebibliography}

\end{document}

