SEDIG, Ismo. Some results in spectral analysis and synthesis at infinity. MATHEMATICA SCANDINAVICA, [S. l.], v. 65, p. 259–277, 1989. DOI: 10.7146/math.scand.a-12282. Disponível em: https://tidsskrift.dk/math/article/view/12282. Acesso em: 13 aug. 2026.