HUSTAD, Otte. A Note on Inductive Limits of Linear Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 12, p. 163–166, 1963. DOI: 10.7146/math.scand.a-10679. Disponível em: https://tidsskrift.dk/math/article/view/10679. Acesso em: 14 aug. 2026.