LÓPEZ MOLINA, J. A. Pitt’s theorem for operators between general Lorentz sequence spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 90, n. 1, p. 101–125, 2002. DOI: 10.7146/math.scand.a-14364. Disponível em: https://journals.msp.org/mscand/article/view/855. Acesso em: 24 jul. 2026.