KULAR, K. Semiprime rings with nilpotent Lie ring of inner derivations. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 13, p. 103–107, 2014. Disponível em: https://studmath.uken.krakow.pl/article/view/13189. Acesso em: 29 oct. 2026.