GŁADKI, Paweł. n-th root selections in fields. Annales Mathematicae Silesianae, [S. l.], v. 33, p. 106–120, 2019. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13655. Acesso em: 7 may. 2025.