[OS X TeX] Reference and backref

[George Gratzer]

It seem there is some conflict between the backref option of hyperref
and the \verb command.

Example:

\documentclass{book} 
\usepackage[backref]{hyperref}

\begin{document} 
\begin{thebibliography}{10}
\bibitem{uK05}
Uwe Kern,
\emph{The \texttt{xcolor} package.} December 21, 2005.\\
\verb+\http:www.ukern.de\tex\xcolor.html+
\end{thebibliography}
\end{document}

Log file:

! Undefined control sequence.
<argument> ...} December 21, 2005.\\ \verb +\http 
                                                  :www.ukern.de\tex \xcolor ...
<*> xxx.tex
           
? 

What did i do wrong?

GG