ZHANG, Genkai. Ha-Plitz Operators between Moebius Invariant Subspaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 71, p. 69–84, 1992. DOI: 10.7146/math.scand.a-12411. Disponível em: https://journals.msp.org/mscand/article/view/1239. Acesso em: 24 jul. 2026.