BROWN, C. C. Über schwach-kompakte Operatoren im Banachraum. MATHEMATICA SCANDINAVICA, [S. l.], v. 14, p. 45–64, 1964. DOI: 10.7146/math.scand.a-10705. Disponível em: https://www.mscand.dk/article/view/10705. Acesso em: 5 may. 2024.