KARCHEVS’KA, L. I. ON the Openness of Functors of k-Nonexpanding and Weakly Additive Functionals. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 11, p. 1567–1574, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2536. Acesso em: 5 dec. 2025.