%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{AlgieL.L.1984} Algie L. L., W. D. S. and L. F. (1984). Phase noise and  AM noise measurements in the frequency domain. \textit{Academic Press.}, \textit{11}, 239--289.

\end{thebibliography}

\end{document}

