Z. A. Kabluchko, D. P. Proskurin, and Y. S. Samoilenko, “On C*-Algebras Generated by Deformations of CCR”, Ukr. Mat. Zhurn., vol. 56, no. 11, pp. 1527–1538, Nov. 2004, Accessed: Apr. 23, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3863