1. An Introduction to the Theory of Numbers;E T Bell;Bulletin of the American Mathematical Society,1939
2. Prime Numbers
3. The history of the primality of one: a selection of sources;C K Caldwell;Journal of Integer Sequences,2012
4. New developments on the twin prime problem and generalizations;M R Murty;HardyRamanujan Journal,2014
5. The Ubiquity of Prime Numbers