Citation counts (or times cited) is usually regarded as an indicator of the article's impact within its discipline. In addition, tracking the forward & backward citations of an article can help you identify related information about your topic.
Web of Science (WOS) and Scopus provide tools for citation analysis. However, these tools have their own limitations and coverage, and they should be used with caution in evaluating research.
The following examples will show you how to find citation numbers from Web of Science (WoS).
Article: "A survey of corporate governance" by Shleifer, A., and Vishny, RW.
You can search for a topic, an organization or an author to generate a citation report. The Citation Report provides aggregate citation statistics for a set of search results, including: