So i have been trying to pull some papers together and review but wondering if there is a minimum requirement for the number of papers for a particular review.
Marcello is correct. As with any review Gideon - you are limited by the available literature to serve your topic and its parameters. As long as you can demonstrate a rigorous and robust literature search trail, across a few similar databases, that results in a refined 'corpus' of articles, then whatever number you end up with 'is what it is'. Of course, the smaller the final 'hits' of key articles, the more you have to ask questions such as - has the topic developed enough yet for a corpus and/or is their enough current interest in developing it?
The type of the review should not matter or having too many papers. The search needs to be exhaustive and the papers selected should meet the inclusion criteria set forth before the search begins.
There is no hard and fast rule regarding the minimum needed. However you are limited by what is available. Make sure that the most seminal works are included. If there is scarcity of literature please state so clearly in your paper and try to cast your net a little wider in that case to catch some peripherally related work.
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