Abood, Loay, Shatha Al-Hilly, and Raaid Hassan. “Describing the Wavefront Aberrations of the Hexagonal Aperture Using Modified Zernike Polynomials”. Iraqi Journal of Science 54, no. 1 (December 30, 2023): 222–231. Accessed January 5, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12063.