KOFANOV, V. A. Sharp upper bounds of norms of functions and their derivatives on classes of functions with given comparison function. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 7, p. 969–984, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2778. Acesso em: 5 dec. 2025.