Approximation Properties by $q$-Durrmeyer-Stancu Operators. Analysis in Theory and Applications, [S. l.], v. 29, n. 4, p. 373–383, 2013. DOI: 10.4208/ata.2013.v29.n4.6. Disponível em: https://global-sci.com/index.php/ata/article/view/7998. Acesso em: 6 dec. 2025.