AHLFORS, Lars V. Invariant operators and integral representations in hyperbolic space. Mathematica Scandinavica, Berkeley, CA, United States, v. 36, p. 27–43, 1975. DOI: 10.7146/math.scand.a-11560. Disponível em: https://journals.msp.org/mscand/article/view/2058. Acesso em: 25 jul. 2026.