UHER, Zbyněk. Essential Kummer’s vectors. Annales Mathematicae Silesianae, [S. l.], v. 17, p. 53–66, 2003. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14101. Acesso em: 7 may. 2025.