Morozov DI. Description of the class of strictly differentiable finite-state isometries of the ring $Z_2$. Ukr. Mat. Zhurn. [Internet]. 2021Sep.16 [cited 2024Dec.22];73(9):1285 -1288. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/6106