Asymptotic expansions of a solution to an elliptic boundary-value problem for a thin cascade domain. Neliniini Kolyvannya, [S. l.], v. 16, n. 2, p. 214–237, 2013. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/694. Acesso em: 21 jan. 2026.