BELLISARD, Jean; IOCHUM, Bruno. Spectral theory for facially homogenous symmetric self-dual cones. MATHEMATICA SCANDINAVICA, [S. l.], v. 45, p. 118–126, 1979. DOI: 10.7146/math.scand.a-11829. Disponível em: https://tidsskrift.dk/math/article/view/11829. Acesso em: 14 aug. 2026.