RAMZANPOUR, E.; BODAGHI, A. Approximate multi-Jensen-cubic mappings and a fixed point theorem. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 19, p. 141–154, 2020. Disponível em: https://studmath.up.krakow.pl/article/view/7929. Acesso em: 5 dec. 2023.