XIAOQIN, W. Analyticity theorems for parameter-dependent currents. MATHEMATICA SCANDINAVICA, [S. l.], v. 69, p. 179–198, 1991. DOI: 10.7146/math.scand.a-12377. Disponível em: https://www.mscand.dk/article/view/12377. Acesso em: 14 apr. 2025.