NGUYEN, Trung Hieu. Fixed point theorems for contractions of rational type in ordered rectangular metric spaces. Dong Thap University Journal of Science, [S. l.], n. 12, p. 81–87, 2015. DOI: 10.52714/dthu.12.4.2015.188. Disponível em: https://dthujs.vn/index.php/dthujs/article/view/827. Acesso em: 8 sep. 2024.