Go to Google Scholar Scholar.google.com and search for the target article title.
In this case you will notice that this article has veen cited 126 times.
Click where it says Cited by 126 and you will get all the articles done since this one was publ;ished that cite this one.
Following the citations can bring you a wealth of newer information. Some of the citing articles can confirm the information from the original article, others may refute the findings. Looking at ythe citing articles can be a great way to find additional information.