MOTORNYI, V. P. On One-Sided Approximation of Functions with Regard for the Location of a Point on an Interval. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 5, p. 666–669, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4105. Acesso em: 14 apr. 2025.