Raphael Schumacher
      The prime number double product
      International Mathematical Forum, Vol. 10, 2015, no. 2, 57-67
      http://dx.doi.org/10.12988/imf.2015.412199
Copyright © 2014 Raphael Schumacher. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.