KRUK, Lukasz. Convergence of Tight Asymptotic Martingales in a Banach Space. Mathematica Scandinavica, Berkeley, CA, United States, v. 79, p. 153–160, 1996. DOI: 10.7146/math.scand.a-12597. Disponível em: https://journals.msp.org/mscand/article/view/1071. Acesso em: 25 jul. 2026.