KASPAREK, Erwin. Remark on invariant straight lines of some affine transformations in ℝ^n without fixed points. Annales Mathematicae Silesianae, [S. l.], v. 19, p. 19–21, 2005. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14080. Acesso em: 17 jul. 2025.