Lavrenyuk, Y. V. and Sushchanskii, V. I. (2008) “Lattice of normal subgroups of a group of local isometries of the boundary of a spherically homogeneous tree”, Ukrains’kyi Matematychnyi Zhurnal, 60(10), pp. 1350–1356. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3249 (Accessed: 20April2024).