\documentclass{article}
\usepackage{hyperref}
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\title{My First Article}
\author{A. U. Thor}
\date{2013-10-31}

\begin{document}
\maketitle

This is my first text.

A new line starts a new paragraph.

Bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla

We also need accented characters: \"a \"o \"u {\ss}
I could also enter them directly: ä ö ü

\section{Introduction}

Here is where I should explain what is going on.

The main result will be in Equation~\ref{eq:1} of Section~\ref{sec:results}.

\section{Results}
\label{sec:results}

This is where the results should go.

Here is our first formula:
$ \sum_{i=0}^n x^i = (1 - x^{n+1}) / (1 - x) $.
Alternatively, you could do
\begin{math}
  \sum_{i=1}^n i = n(n+1)/ 2.
\end{math}
Here is how you display a formula:
\begin{equation}
  \frac{1}{\sqrt{2\pi}} \int_{-\infty}^\infty e^{-t^2/2} \, dt = 1.
\end{equation}
(see \cite{wiki:xxx} for more details).

Could also have numbered equations.
\begin{equation}
  \label{eq:1}
  \sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6}.
\end{equation}

Here is how to do ``bullet'' lists:

\begin{itemize}
 \item Item 1.
 \item Item 2.
\end{itemize}

And with numbers:

\begin{enumerate}
 \item Item 1.
 \item Item 2.
\end{enumerate}

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