Fourier-Galerkin algorithm for 2D localized solutions. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 89, p. 169–179, 1997. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/365. Acesso em: 15 dec. 2025.