I. P. Mazur, “Skitovich-Darmois theorem for finite Abelian groups”, Ukr. Mat. Zhurn., vol. 63, no. 11, pp. 1512–1523, Nov. 2011, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2821