[texhax] how to use cite in beamer

[lina]

Hi,

The head of beamer is as following:

\documentclass[slidestop,compress,red,mathserif]{beamer}
\usetheme{Antibes}
\usecolortheme{lily}
\beamertemplatetransparentcoveredhigh
\beamertemplateshadingbackground{blue!5}{yellow!10}
\beamertemplateballitem
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{verbatim}
\usepackage{tikz}
\usepackage{subfigure}
\usetikzlibrary{arrows,shapes}
\graphicspath{{images/}}
\DeclareGraphicsExtensions{.jpg,.jpeg,.pdf,.png,.mps}

I am stuck with how to use \cite in beamer.