SHRIVASTAVA, U. K.; VERMA, S. K. ON THE DEGREE OF APPROXIMATION OF FUNCTIONS BELONGING TO THE LIPSCHITZ CLASS BY $(e,c)$ MEANS. Tamkang Journal of Mathematics, [S. l.], v. 26, n. 3, p. 225–229, 1995. DOI: 10.5556/j.tkjm.26.1995.4399. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4399. Acesso em: 22 jul. 2024.