PAEPE, P. J. D. Essential function algebras with large Silov boundary. MATHEMATICA SCANDINAVICA, [S. l.], v. 43, p. 325–328, 1978. DOI: 10.7146/math.scand.a-11785. Disponível em: https://www.mscand.dk/article/view/11785. Acesso em: 14 apr. 2025.