“Eigen function Expansion Method for Solving One-Group Neutron Diffusion Equation”, J. Int. Acad. Phys. Sci., vol. 16, no. 2, pp. 163–170, Jun. 2012, Accessed: Oct. 23, 2026. [Online]. Available: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/403