Kruhlyak, S. A., & Livins’kyi, I. V. (2010). Regular orthoscalar representations of the extended Dynkin graph $\widetilde{E}_8$ and ∗-algebra associatedwith it. Ukrains’kyi Matematychnyi Zhurnal, 62(8), 1044–1062. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2936