OSAKA, Hiroyuki; SILVESTROV, Sergei; TOMIYAMA, Jun. Monotone operator functions, gaps and power moment problem. MATHEMATICA SCANDINAVICA, [S. l.], v. 100, n. 1, p. 161–183, 2007. DOI: 10.7146/math.scand.a-15019. Disponível em: https://tidsskrift.dk/math/article/view/15019. Acesso em: 13 aug. 2026.