The pages generated by DoubleWiki are index by search engines like Google. So they are duplicates entries for each pages.
It may be good to add noindex,nofollow to the page generated by DoubleWiki.
Version: unspecified
Severity: enhancement
URL: http://www.google.fr/search?q=%22La%20mort%20et%20le%20Malheureux%22%20site:wikisource.org