DONTCHEV, J. ON SUBMAXIMAL SPACES. Tamkang Journal of Mathematics, [S. l.], v. 26, n. 3, p. 243–250, 1995. DOI: 10.5556/j.tkjm.26.1995.4402. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4402. Acesso em: 6 may. 2024.