Livins'kyi IV. Regular orthoscalar representations of extended dynkin graphs $\widetilde{E}_6$ and $\widetilde{E}_7$ and *-algebras associatedwith them. Ukr. Mat. Zhurn. [Internet]. 2010 Nov. 25 [cited 2025 Apr. 24];62(11):1459–1472. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2971