[1]
A. A. Tylyshchak, “On the maximal unipotent subgroups of a special linear group over commutative ring”, Ukr. Mat. Zhurn., vol. 71, no. 8, pp. 1150–1156, Aug. 2019, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1506