Citations can be counted as a measure of the usage and impact of a research publication. Citation counts are used to measure impact for:
Publications (such as journals, books and conference papers)
Checking your citation impact
Search a citation database for your article. There will be a 'Cited by' link, or similar, which will provide details about the number of times your article has been cited, where and by whom.
You may need to search more than one database, as citation data is collected only from the articles contained in that database. If a citing article is not also in the database you are searching, its citation data may not be included.
Checking which articles in your field are highly cited
In some citation databases you can sort the results of a search by the number of citations each result has received. This allows you to search for articles in a particular subject area, and then have the most highly cited works display at the top of your results list.
Track citations of my work over time
Several citation databases allow you to place 'Citation Alerts' on articles so that you will be notified when they receive a new citation.
Although different databases will have different procedures for setting citation alerts, the general principles are the same:
Locate the record of the article you want to add as a citation alert.
Create a Citation Alert for the specified article.
Scopus - Search for the publications of an author, research group, or institution and calculate the h-index. You can access an h-index from the author details, the analyze author output and the citation overview pages.
Google Scholar - My Citations. Google Scholar searches academic publishers, professional societies and pre-print archives. Beware, some non-scholarly publications may be included.
Citation patterns vary across disciplines. Only compare the h-indexes of researchers within the same discipline.
An h-index is related to the set of results in an individual citation database and will therefore depend on the discipline coverage in the database. Always provide the data source and date along with the h-index.
To create a true h-index based on all unique citations to your publications from all sources, you will need to calculate it manually.
The h-index is not an effective measure for early-career researchers, as their papers have not had time to accumulate citations.
Individual highly cited papers may not be accurately reflected in an h-index, as this measurement ignores the number of citations beyond what is needed to achieve a certain h-index.