Backward chaining involves looking at a published work's references to find other material that covers similar topics.
Once you find an article or book relevant to your research topic, the references or works cited section will give you the citation information the author(s) used to develop their own ideas. This is a great way to find other sources that relate to your topic.
Resources cited in your article...
- will be older than the article
- will help you identify past resources on the same topic (such as theories or classic articles)