% !TeX program = xelatex
% !TeX spellcheck = en_GB
% !TEX outputDirectory = tex_output
% !TEX enableSynctex = true
% !TEX jobNames = letter

\makeatletter
\def\input@path{{/home/user_name/MyLatexTemplates/}{../}}
\newcommand{\maintitle}{Letter Title}
\newcommand{\mainsubject}{Example Letter}
\newcommand{\mainkeywords}{Keywords}
\makeatother

\newcommand{\placelogo}{Style/latex_logo.pdf}
\documentclass[blank]{impletter}
\input{letter.preamble.cls}
\begin{document} 
\bstctlcite{IEEEexample:BSTcontrol}

\headers{
Exemplary reference letter

}
% Replace with the salutation for this letter
{
Dear Sir/Madam,
}
\informal

\lipsum[1-4] \cite{refernce1,refernce2,refernce3}

\close{
Yours sincerely,
}

\usection{References}
\bibliographystyle{IEEEtran}
\bibliography{IEEEabrv,IEEEbst,local}
\end{document}