Citation tracking refers to a method of measuring the impact of research studies and/or for identifying leading scholars in a particular discipline based upon a systematic analysis of how often a specific research study has been cited by others, who has cited a particular study, and by exploring what disciplines are represented by those subsequent citations.
Citation tracking can be an effective way to use a "landmark" or influential article to find more recent, related articles that cite that article. It also can be an effective way to identify who has subsequently cited the work of a leading scholar in a particular field.
When conducting your literature review, citation tracking can be a particularly useful means for evaluating a study's "impact" in a particular discipline based upon the number of times an author or article has been cited subsequently by others.
Citation tracking can also be an effective means of determining the interdisciplinary value of a particular study because you can identify how many times subsequent citations to an article appeared in disciplines outside of where the cited article was published.
When tracking citations, keep in mind the following points: