BRUNDIN, M. Approach regions for $l^{p}$ potentials with respect to the square root of the Poisson kernel. MATHEMATICA SCANDINAVICA, [S. l.], v. 96, n. 2, p. 243–256, 2005. DOI: 10.7146/math.scand.a-14955. Disponível em: https://www.mscand.dk/article/view/14955. Acesso em: 3 jul. 2024.