HARIKRISHNAN, P.K.; LAFUERZA–GUILL´EN, Bernardo; CHO, Yeol Je; RAVINDRAN, K.T. Fixed point theorem for contraction mappings in probabilistic normed spaces. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 43, p. 818–827, 2020. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7288. Acesso em: 6 nov. 2026.