Khadjiev, Djavvat, and İdris Ören. “Projective and Projective-Permutation Invariants for a Point Shape Recognition”. International Journal of Maps in Mathematics 7, no. 2 (September 1, 2024): 207–216. Accessed November 22, 2024. https://simadp.com/journalmim/article/view/7-2-5.