BALIBREA GALLEGO, Francisco; BAS, Antonio Linero. On the periodic structure of the antitriangular maps on the unit square. Annales Mathematicae Silesianae, [S. l.], v. 13, p. 39–49, 1999. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14135. Acesso em: 7 may. 2025.