SJÖGREN, Peter. Characterisations of Poisson integrals on symmetric spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 49, p. 229–249, 1981. DOI: 10.7146/math.scand.a-11933. Disponível em: https://journals.msp.org/mscand/article/view/1733. Acesso em: 25 jul. 2026.