KARKLINŠ, J. Inductive limits of increasing-sequences of commutative topological groups. (I). Lithuanian Mathematical Journal, [S. l.], v. 5, n. 1, p. 57–68, 1965. DOI: 10.15388/LMJ.1965.19541. Disponível em: https://journals.vu.lt./LMJ/article/view/19541. Acesso em: 27 apr. 2025.