DURMAGAMBETOV, A. Reduction of modern problems of mathematics to the classical Riemann-Poincare-Hilbert problem. European Journal of Pure and Applied Mathematics, [S. l.], v. 11, n. 4, p. 1143–1176, 2018. DOI: 10.29020/nybg.ejpam.v11i4.3328. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3328. Acesso em: 5 jul. 2022.