BURSKY, V. P. On solutions of the Dirichlet problem for elliptic systems on a circle . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 10, p. 1307–1313, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8225. Acesso em: 5 dec. 2025.