Cameron, V., T. denOtter, C. Ozel, M. K. Srivastav, and M. Syzdykov. “A Symmetric Model of Prime Number Placement by Dual Cord at the Half Line of the Inverse Fixed Cone at 1:3 Pythagoras , in a Fixed Numbers Matrix”. Journal of Progressive Research in Mathematics, Vol. 12, no. 2, Aug. 2017, pp. 1867-23, http://scitecresearch.com/journals/index.php/jprm/article/view/1172.