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Research Guides

Cited Reference Searching: What About Google Scholar?

Identifying publications that have cited an article of interest.

Google Scholar for Cited Reference Searching: Pros and Cons

Question: Who has cited this 2012 study on the effects of nighttime sleep duration on obesity gene expression?

Article reference in Google Scholar showing the link to 80 citing articles.

Results: What did I find in Google Scholar that I didn't find in the other databases?

Pros: Access to Preprints of Scholarly Articles, Dissertations, and Reports
 
Google Scholar returned an "article ahead of print" in Advances in Nutrition.  Because it wasn't yet published as part of a formal journal issue, it had not yet been indexed by Web of Science or PubMedCentral.  When the article is formally published, it will be indexed by those databases.  [It will be included in PubMedCentral because the research depended on NIH funding.]  Google Scholar also returned a dissertation that wasn't in the other databases, reports from Robert Wood Johnson, a blog post, and several non-English language articles.

 

Cons: Inaccurate Results
 
Google Scholar also returned a 2008 report on obesity titled "F is for Fat: How Obesity Policies are Failing " from the Robert Wood Johnson Foundation.  This could be interesting, but it does not in fact cite my article.  The obesity report was written before my article was even published.
 

Resource

Number of citing publications

Type of citing publications

Accurate?

Complete?

Timeliness Rank

 

 

 

 

 

 

Web of Science

37

Articles, book chapter

Yes

No

2

PubMed Central

23

Articles

Yes

No

2

Google Scholar

80

Articles, book chapters, dissertations, preprints, reports, & blog posts.

No

No

1

 
 [Searches conducted July 17, 2020.]

Bottom Line

1. Google Scholar is great for finding citing references that may not be available in other standard databases.

2. Google Scholar might not be an acceptable source for citation metrics and author impact factors for scholarly purposes, such as promotion & tenure. 

Google Is Not a Database

Unlike the other sources for cited reference searching,

  • Google Scholar is an internet search engine, not an organized database. 
  • The scope of Google Scholar is not limited to scholarly publications. 
  • The journal titles and time frame of coverage are not specified in Google Scholar.
  • Google Scholar has not been structured and indexed by humans.
  • Google Scholar retrieves publications that are not included in standard bibliographic databases. 
  • Google Scholar may retrieve the same publication in multiple locations: on research lab websites, in patents, in PowerPoint presentations, etc.

No citation metric tool offers an exact measure of research impact.  Still, it's important to remember that the number of citing publications listed by Google Scholar is likely to be an inflated number.  If you're documenting the citation count of an article or h-index of an author, it's important to specify that the source of those metrics is Google Scholar.