%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Mair_etal2005} Mair, U., Suttywong, N., H{\"u}bers, H. - W., Semenov, A. D., Richter, H., Wagner, G., et al. (2005). Development of 1.8 THz receiver for the TELIS instrument. In \textit{Proc. 16$^{th}$ Int. Symp. Space Terahertz Technol.}. G{\"o}teborg, Sweden.

\end{thebibliography}

\end{document}

