Agayan, G., and S. Serezhnikov. “Visualization of Diffraction Effects in the Design of Computer-Generated Holograms”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 2, no. 2, Nov. 2001, pp. 167-74, https://en.num-meth.ru/index.php/journal/article/view/27.