1.
Супрун ОМ. Half-group of non-compact discrete subgroups relatively to operation of topological generation of subgroups. Proceedings of National Aviation University [Internet]. 1999 May 12 [cited 2024 Jun. 30];2(1):238-42. Available from: https://jrnl.nau.edu.ua/index.php/visnik/article/view/8997