Hi Nabil !
thanks for your quick answer.
I've just tried your suggestion. But it doesn't work !!! My code is in the override/templates/listitem/article.tpl
<li class="extraitNews">
<h1>
<a href={$node.url_alias|ezurl} title="Lien vers : {$node.object.data_map.title.content|wash}">{$node.object.data_map.title.content|wash}</a>
</h1>