GLICKSBERG, I. On Two Consequences of a Theorem of Hoffman and Wermer. MATHEMATICA SCANDINAVICA, [S. l.], v. 23, p. 188–192, 1968. DOI: 10.7146/math.scand.a-10910. Disponível em: https://tidsskrift.dk/math/article/view/10910. Acesso em: 14 aug. 2026.