AHERN, Patrick; RUDIN, Walter. Zero sets of functions in harmonic Hardy spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 73, p. 209–214, 1993. DOI: 10.7146/math.scand.a-12466. Disponível em: https://journals.msp.org/mscand/article/view/1200. Acesso em: 24 jul. 2026.