Citation chasing refers to the process of retracing the research of an author. This is a way of finding targeted, relevant research. It can be done by accessing an article or work's Works Cited, References, or Bibliography.
Cited reference searching (or "forward" citation chasing) refers to the method of finding articles that have cited a previously published work. Cited reference searching can be done in databases that index citation, like Web of Science and Scopus.
This method of tracking citations is simply another way of searching databases to find relevant sources and articles. Citation chasing and cited reference searching, however, has many purposes.