• LatexPackage

\usepackage[centertags]{amsmath} \usepackage{amssymb} \usepackage{amstext} \usepackage{amsbsy} \usepackage{amsopn} \usepackage{amscd} \usepackage{amsxtra} \usepackage{amsthm} \usepackage{amsfonts}

\usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage{palatino}

\usepackage[active]{srcltx} \usepackage{fullpage} \usepackage[colorlinks,breaklinks,ps2pdf,a4paper]{hyperref} \usepackage{natbib}

\usepackage{dcolumn} \usepackage{graphicx} \usepackage{tabularx} \usepackage{hhline} \usepackage{psfrag} \usepackage{multirow} \usepackage{longtable} \usepackage[figuresright]{rotating} \usepackage[labelformat=empty]{subfig} \usepackage[left=.3cm , right=.3cm]{geometry}