Nesterenko, M. O. “Special Exponential Functions on Lattices of Simple Lie Groups and Allotropic Modifications of Carbon”. Ukrains’kyi Matematychnyi Zhurnal 74, no. 3 (April 26, 2022): 351–359. Accessed December 5, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/7130.