CZOGAŁA, Alfred. Generators of the Witt groups of algebraic integers. Annales Mathematicae Silesianae, [S. l.], v. 12, p. 105–121, 1998. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14168. Acesso em: 2 jul. 2025.