Optimum finite-element method for domains of complex form (a Dirichlet problem for an equation with elliptic differential operator of 2-nd order). Neliniini Kolyvannya, [S. l.], v. 2, n. 2, p. 217–224, 1999. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/56. Acesso em: 22 jan. 2026.