ALBEVERIO, S.; KOSHMANENKO, V. D.; TORBIN, G. M. Fine structure of the singular continuous spectrum. Methods of Functional Analysis and Topology, [S. l.], v. 9, n. 2, p. 101–119, 2003. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/206. Acesso em: 17 dec. 2025.