Add line in list of figure

For my report I create a cover on illustrator with figures and I would like add line in list of figure to show source of that :

    \documentclass[11pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[frenchb]{babel}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\begin{document}

\begin{figure}
\includegraphics[width=\linewidth]{example-image-a}
\caption{dummy figure}
\end{figure}

\listoffigures
\end{document}


but when i want to add a second line i have a problem :

\addtocontents{lof}{{}{\emph{Hannibalszug 6}, Alfred Rethel, 1842}}~\hfill{couverture}
\addtocontents{lof}{{}{\emph{Hannibal crossing the Alps}, \emph{Comic History of Rome}, John Leech, 1850}}~\hfill{couverture}


What is the problem in my code ? And a last question, how can i put lines at the top of the list?

Thanks a lot, and sorry for my rough English

Is this what you were looking for? Note: the last line doesn't fit inside \textwidth.

\documentclass[11pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[frenchb]{babel}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\begin{document}

\begin{figure}
\includegraphics[width=\linewidth]{example-image-a}
\caption{dummy figure}
\end{figure}

\listoffigures
\addtocontents{lof}{\hbox to \textwidth{{\emph{Hannibalszug 6}, Alfred Rethel, 1842}~\hfill{couverture}}}
\addtocontents{lof}{\hbox to \textwidth{{\emph{Hannibal crossing the Alps}, \emph{Comic History of Rome}, John Leech, 1850}~\hfill{couverture}}}
\end{document}

• thanks a lot ! it's ok, but how can I put this line before the first figure in the list ? – Axelito May 27 '15 at 5:53
• The easiest way is to put the \addtocontents inside the figure in front of the caption. It's first come, first served. – John Kormylo May 27 '15 at 13:50