Carbajal-Domínguez, A., J. Arroyo, J. Gómez Correa, G. Niconoff, and G. Niconoff. “Numerical Calculation of Near Field Scalar Diffraction Using Angular Spectrum of Plane Waves Theory and FFT”. Revista Mexicana De Física E, vol. 56, no. 2 Jul-Dec, Jan. 2010, pp. 159-64, https://rmf.smf.mx/ojs/index.php/rmf-e/article/view/4636.