I have found that a great way to take 'ownership' of your content is to immediately submit it to the Google index as soon as it goes live.
You can do this through Google Webmaster Tools.
Then, from the menu Crawl --> Fetch as Google.
Then, enter your URL, Fetch it, and Submit it to the index.
This should resolve your issue.
Note: Ensure that you get a confirmation message indicating that the page was submitted. Sometimes, it doesn't work on the first try.