# Problem with IEEEtran for LaTeX Bibliography [duplicate]

I download latex bibliography style file from here.

Sample Code:

\documentclass[twocolumn,conference,a4paper]{IEEEtran}

\usepackage{amssymb,amsmath,epsfig,latexsym,graphicx,bm,multirow}
\usepackage[left = .56in, top=.75in,right=.56in,bottom=0.8in,nohead,nofoot]{geometry}
\usepackage{epstopdf}
\begin{document}
\maketitle
\bibliographystyle{IEEEtran}
\bibliography{IEEEabrv,IEEE}
\end{document}


The problem is that references of one column are move to other column and some moves out of page's margin. Example shown in below fig: