ALBEVERIO, S.; KONDRATIEV, Yu. G.; KOZITSKY, Yu. V. Quantum hierarchical model. Methods of Functional Analysis and Topology, [S. l.], v. 2, n. 3, p. 1–35, 1996. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/17. Acesso em: 19 dec. 2025.