Dokuchaev, M.A. and Kirichenko, V.V. (2002) “Quasi-Frobenius Rings and Nakayama Permutations of Semiperfect Rings”, Ukrains’kyi Matematychnyi Zhurnal, 54(7), pp. 919–930. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4128 (Accessed: 10 April 2025).