DIECKMANN, G. Korovkin Theory in Lindenstrauss Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 75, p. 240–254, 1994. DOI: 10.7146/math.scand.a-12517. Disponível em: https://www.mscand.dk/article/view/12517. Acesso em: 6 may. 2024.