On an optimal interpolation formula with derivatives in the Sobolev space. Uzbek Mathematical Journal, [S. l.], v. 70, n. 1, p. 192–201, 2026. DOI: 10.29229/uzmj.2026-1-22. Disponível em: https://uzmj.mathinst.uz/index.php/uzmj/article/view/295.. Acesso em: 26 mar. 2026.