ProtasovI. V. and SlobodianiukS. V. (2013) “Thin Subsets of Groups”, Ukrains’kyi Matematychnyi Zhurnal, 65(9), pp. 1245–1253. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2505 (Accessed: 22November2024).