MAKAROV, V. Biorthogonal polynomials and their properties. Direct and inverse statements. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 77, n. 10, p. 629–639, 2025. DOI: 10.3842/umzh.v77i10.9381. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9381. Acesso em: 5 dec. 2025.