LIVINS'KYI, I. V. Regular orthoscalar representations of extended dynkin graphs $\widetilde{E}_6$ and $\widetilde{E}_7$ and *-algebras associatedwith them. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 11, p. 1459–1472, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2971. Acesso em: 27 apr. 2025.