Superexponentially convergent algorithm for an abstract eigenvalue problem with applications to ODEs. Neliniini Kolyvannya, [S. l.], v. 18, n. 3, p. 332–356, 2015. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/791. Acesso em: 13 dec. 2025.