1.
Tylyshchak AA. On the maximal unipotent subgroups of a special linear group over commutative ring. Ukr. Mat. Zhurn. [Internet]. 2019Aug.25 [cited 2024Apr.28];71(8):1150-6. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1506