REDDY, G SUDHAAMSH MOHAN. “Annular Apertures in Point Spread Function of Amplitude Anodization Filters in Central Obscuration”. International Journal of Control and Automation 12, no. 6 (December 12, 2019): 585 - 596. Accessed February 13, 2026. http://sersc.org/journals/index.php/IJCA/article/view/3977.