NOWAKOWSKA, Marta. Algebraic properties of semi-direct sums of rings. Annales Mathematicae Silesianae, [S. l.], v. 39, n. 2, p. 319–330, 2025. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/19099. Acesso em: 21 dec. 2025.