Citation mapping

Hart (1998) explains the usefulness of citation mapping and analysis in order “to map out the development of an idea, technique or theory“, which is an important aspect of a literature review. See also what Wikipedia has to say about citation index.

Google Scholar is a free tool to help with this. The paper by Noruzi (2005) gives an overview of how to use Google Scholar.

Hart C. 1998. Doing a literature review : releasing the social science research imagination. London: SAGE.
Noruzi A. 2005. Google Scholar: The New Generation of Citation Indexes. Libri, International Journal of Libraries and Information Services 55(4):169-253.