SCHIFFER, M. M.; SCHOBER, G. Representation of fundamental solutions for generalized Cauchy-Riemann equations by quasiconformal mappings. Annales Fennici Mathematici, [S. l.], v. 2, n. 1, p. 501–531, 1976. DOI: 10.5186/aasfm.1976.0232. Disponível em: https://afm.journal.fi/article/view/134311. Acesso em: 25 nov. 2024.