The doctoral student should master the most important literature related to his/her research topic, even better than the supervisor(s). The role of the supervisor is to give a starting point for the literature review, but the task of the student is to go deeper into the literature.
|title||Examples of literature review, meta-analysis and technological overview articles|
The literature search is usually done in the beginning of the studies, but the literature search might be needed again when writing the articles related to the doctoral studies. Creswell (2009) recommends that the literature search should be started by identifying the key words. It is also good to note that a proper literature search will take time. It is not completed in day or two or even in couple of weeks.