BROWN, Clifford C. Über schwach-kompakte Operatoren im Banachraum. Mathematica Scandinavica, Berkeley, CA, United States, v. 14, p. 45–64, 1964. DOI: 10.7146/math.scand.a-10705. Disponível em: https://journals.msp.org/mscand/article/view/2596. Acesso em: 25 jul. 2026.