Chaining is using the source you have access to, and look at the sources in the bibliography that were used to create this source. You can then find the sources in the bibliography, and look at sources that were used to create those resources.
1. Go to the bibliography or references of an article or book that you already have.
2. Scan the bibliography to find potentially useful resources to search for.
3. When you have found one, copy the citation and paste it into the search box of the database that you are using
4. Look under Search Modes and select SmartText Searching (not available in EBSCO Discovery Service)
5. If the article is in the database, it will display in the results list.