\chapter*{Rockbox}

\vspace{3cm}
\noindent
\begin{center}
\url{http://www.rockbox.org/}
\end{center}

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\begin{quote}
  Copyright \copyright 2004 Christi Alice Scarborough, 2003 Jos\'{e} Maria Garcia-Valdecasas Bernal \& Peter Schlenker.
  Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.2
  or any later version published by the Free Software Foundation;
  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
  A copy of the license is included in the section entitled "GNU
  Free Documentation License".
\end{quote}