Krˇcadinac, Vedran, and Ksenija Smoljak. “Pedal Sets of Unitals in Projective Planes of Order 9 and 16”. Sarajevo Journal of Mathematics 7, no. 2 (June 10, 2024): 255–264. Accessed October 15, 2024. https://sjm.anubih.ba/index.php/sjm/article/view/294.