WYROBEK-KOCHANEK, Wirginia. Orthogonally Pexider functions modulo a discrete subgroup. Annales Mathematicae Silesianae, [S. l.], v. 26, p. 93–100, 2013. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14016. Acesso em: 7 may. 2025.