ROSTISLAV I. GRIGORCHUK, ANDRZEJ ŻUK, “ON A TORSION-FREE WEAKLY BRANCH GROUP DEFINED BY A THREE STATE AUTOMATON”, Int. J. Algebra Comput., 12, no. 01n02, 2002, 223
Agnieszka Bier, Yuriy Leshchenko, Vitaliy Sushchanskyy, “Automorphisms of restricted parabolic trees and Sylow p-subgroups of the finitary symmetric group”, Journal of Algebra, 452, 2016, 401
Robyn Curtis, “Hecke algebras associated with induced representations”, Comptes Rendus. Mathématique, 334, no. 1, 2002, 31
M. Bachir Bekka, Pierre de la Harpe, Rostislav Grigorchuk, “Irreducibility of unitary group representations and reproducing kernels Hilbert spaces”, Expositiones Mathematicae, 21, no. 2, 2003, 115