DRAGANOV, Borislav R. A strong converse inequality for the iterated Boolean sums of the Bernstein operator. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 67, n. 3, p. 591–598, 2022. DOI: 10.24193/subbmath.2022.3.10. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/1554. Acesso em: 5 feb. 2025.