PANT, B. D.; CHAUHAN, S. A contraction theorem in menger space. Tamkang Journal of Mathematics, [S. l.], v. 42, n. 1, p. 59–68, 2010. DOI: 10.5556/j.tkjm.42.2011.610. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/610. Acesso em: 25 apr. 2024.