POPA, Valeriu; PATRICIU, Alina-Mihaela. Altering distance and common fixed points for hybrid mappings under implicit relations and applications. Annales Mathematicae Silesianae, [S. l.], v. 28, p. 87–96, 2014. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13994. Acesso em: 7 may. 2025.