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Chemistry & Physics

APA Citation

Check out our APA Style Guide to see examples of APA citation including a sample APA Bibliography!

APA Style Guide

Citation Counts

Citation counts show the number of times an article is cited by other researchers.  It is one way to measure the impact of a scholar's work.  Several databases keep track of citation counts within that database.


Proquest Citation Counts

The "Cited by" link show many articles have made a citation or reference to this article.  If you click on the link you can see a list of the articles.

Image of Proquest Results Page for keyword

1) The "cited by" link under each result shows how many other articles have cited this article.  A higher number can often mean a more influential article.

List of 5 articles that have cited this biology article

2) If you click on the "cited by" link you will see the list of articles that have cited this article.  

Image of Reference Link that appears below Proquest search result

3) Some articles will also have a link for "References".  If you click on this you will be taken to a hyperlinked list of the articles cited within this article.  This can be a good way to discover more articles on the same topic.


Science Direct Citation Counts

Click the "Citing Articles" link on the right side of the screen to see a list of the articles that have cited your article.

Science Direct Citation Counts


Google Scholar Citation Count

You can also search for citation counts in Google Scholar.  Click the "Cited by" link to see a list of the articles that have cited your article.

Google citation count