POLYAKOV, O. V.; RUCHAEVSKAYA, N. O. On rational functions of the best nonsymmetric approximations in integral metrics. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 11, p. 1575–1577, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2683. Acesso em: 5 dec. 2025.