DAHLBERG, B. E. J. On the radial boundary values of subharmonic functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 40, p. 301–317, 1977. DOI: 10.7146/math.scand.a-11697. Disponível em: https://www.mscand.dk/article/view/11697. Acesso em: 28 apr. 2024.