PESKIR, G.; SCHNEIDER, D.; WEBER, M. Randomly Weighted Series of Contractions in Hilbert Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 79, p. 263–282, 1996. DOI: 10.7146/math.scand.a-12606. Disponível em: https://www.mscand.dk/article/view/12606. Acesso em: 6 may. 2024.