links to headline in LaTeX export

["Alan Schmitt" <alan.schmitt@polytechnique.org>]

Hello,

I'm trying to have links (in the form of \ref and \label) work in LaTeX 
export, but I cannot seem to succeed. I'm following the advice of 
http://orgmode.org/worg/org-tutorials/org-latex-export.html (section 
16). I have two problems with my links: first I would like the text to 
be the section number as is the usual in LaTeX, and second the links 
sometimes point to the wrong place. This second problem seems to occur 
when the target is after the source.

Here is a small input showing the problem:

* Title

** Section 1

Text.

** Section 2

I would like a link to [[Section%201][Section 1]] or [[Section 3]].

** Section 3

I would like a link to [[Section%202][Section 2]].



Exporting to LaTeX gives:

% Created 2012-01-20 Fri 11:05
\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{float}
\usepackage{wrapfig}
\usepackage{soul}
\usepackage{amssymb}
\usepackage{hyperref}


\title{test}
\author{Alan Schmitt}
\date{20 January 2012}

\begin{document}

\maketitle

\setcounter{tocdepth}{3}
\tableofcontents
\vspace*{1cm}
\section{Title}
\label{sec-1}


\subsection{Section 1}
\label{sec-1.1}


Text.

\subsection{Section 2}
\label{sec-1.2}


I would like a link to \hyperref[sec-1.1]{Section 1} or 
\hyperref[sec-1.2]{Section 3}.

\subsection{Section 3}
\label{sec-1.3}


I would like a link to \hyperref[sec-1.2]{Section 2}.

\end{document}

Any suggestion?

Thanks,

Alan