Research metrics are used in many academic disciplines to quantitatively measure the impact of a researcher's work. Citation counts tally the number of times a work has been cited by other researchers within a certain time period and body of works, resulting in a score or metric that may be compared to similar works, authors, publications. Citation counts are employed at the author, article and journal levels. This guide provides an introduction to research metrics and citation searching using Google Scholar, Web of Science, Scopus and others. Tools for author disambiguation, including ORCiD, ResearcherID, and Author Identifier, are also described in this guide.
Although popular within many disciplines of the academic community, research metrics do have limitations and no single measure can define the importance of a particular author, work, or publication. The Leiden Manifesto for Research Metrics is recommended reading/viewing for anyone interested in using research metrics.