This method allows you to quickly and easily gather a lot of literature on a topic. You do this by consulting the bibliography of important articles to find new literature. You then check the bibliographies of those newly found articles for useful references until this method yields no further results.
This method is a good way to make sure you haven't missed anything when searching the databases.
A disadvantage of this method is that you may get stuck in an information bubble; if a group of authors tends to cite each other's work, you keep searching in the same 'pond' or research articles. Another possible disadvantage is that you only search for older papers, and so this method does not provide you with more recent publications.
Citation search is about who cited your chosen publication(s). This is a way to find more recent literature: you take a key article as a starting point and look it up in a database, such as Google Scholar. The search results will then show how many other publications have cited this article, with links to these more recent articles.
If you have questions, please contact the Information Specialist Research of your research center, or go to support & contact for more information and advice.