Some results of accretive operators and convex sets in 2-probabilistic normed space. Journal of Prime Research in Mathematics, [S. l.], v. 8, n. 1, p. 76 – 84, 2012. Disponível em: https://jprm.sms.edu.pk/index.php/jprm/article/view/82. Acesso em: 19 sep. 2025.