1.
Lyubich YI. Dissipative actions and almost periodical representations of Abelian semigroups . Ukr. Mat. Zhurn. [Internet]. 1987 Dec. 29 [cited 2025 Dec. 7];40(1):70-4. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/9057