P. M. Gudivok and E. Y. Pogorilyak, “Matrix Representations of Finite $p$-Groups over Commutative Local Rings of Characteristic $p^s$”, Ukr. Mat. Zhurn., vol. 54, no. 6, pp. 764–770, Jun. 2002, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/4114