D’haeseleer, Jozefien, and Nicola Durante. “On Absolute Points of Correlations of $\mathrm{PG}(2,q^n)$”. The Electronic Journal of Combinatorics 27, no. 2 (May 29, 2020): #P2.32. Accessed April 30, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i2p32.