YLINEN, Karl. The Maximal Ideal Space of a Banach Algebra of Multipliers. Mathematica Scandinavica, Berkeley, CA, United States, v. 27, p. 166–180, 1970. DOI: 10.7146/math.scand.a-10996. Disponível em: https://journals.msp.org/mscand/article/view/2332. Acesso em: 25 jul. 2026.