BELY, V. I.; STRELKOVSKAYA, I. V. Approximation of functions by analytical complex splines in the regions with quasi-conformal boundary . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 40, n. 5, p. 563–568, 1988. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8803. Acesso em: 6 dec. 2025.