Hi,
What you've described sounds like a standard penalty for 'Unnatural Links' as Google would call it. If you've submitted the same article to multiple sites, or a spun article to multiple sites it's highly likely that this is the cause. Sorry!
If you have access to Google Webmaster Tools, then go to the 'Manual Action' section and if you've been manually penalized, it will tell you there.
I recommend deleting the articles where possible and disavowing all the sites that you submitted the articles to, then filing a 'Reconsideration Request' with Google.
If there's no manual action, still delete the articles. Google now has negative link juice from poor quality links, so even without the manual action, this could still be the cause.
Hope that helps!