Navas, AS, “Several amenable groups of interval diffeomorphisms”, Boletin de La Sociedad Matematica Mexicana, 10:2 (2004), 219
Bartholdi L., Grigorchuk R., Nekrashevych V., “From fractal groups to fractal sets”, Fractals in Graz 2001: Analysis - Dynamics - Geometry - Stochastics, Trends in Mathematics, 2003, 25–118
Tullio Ceccherini-silberstein, Antonio Machì, Fabio Scarabotti, “Il gruppo di Grigorchuk di crescita intermedia”, Rend Circ Mat Palermo, 50:1 (2001), 67
Roman Muchnik, Igor Pak, “PERCOLATION ON GRIGORCHUK GROUPS”, Communications in Algebra, 29:2 (2001), 661
ROMAN MUCHNIK, IGOR PAK, “ON GROWTH OF GRIGORCHUK GROUPS”, Int. J. Algebra Comput, 11:01 (2001), 1
Lavrik-Mannlin A., “On Some Semigroups of Intermediate Growth”, Int. J. Algebr. Comput., 11:5 (2001), 565–580
Bartholdi L., Sunik Z., “On the Word and Period Growth of Some Groups of Tree Automorphisms”, Commun. Algebr., 29:11 (2001), 4923–4964
Grigorchuk R., Zuk A., “The Lamplighter Group as a Group Generated by a 2-State Automaton, and its Spectrum”, Geod. Dedic., 87:1-3 (2001), 209–244
Р. И. Григорчук, “Ветвящиеся группы”, Матем. заметки, 67:6 (2000), 852–858 ; R. I. Grigorchuk, “Branch groups”, Math. Notes, 67:6 (2000), 718–723
L. Bartholdi, R. I. Grigorchuk, “On the Spectrum of Hecke Type Operators Related to Some Fractal Groups”, Динамические системы, автоматы и бесконечные группы, Сборник статей, Труды МИАН, 231, Наука, МАИК «Наука/Интерпериодика», М., 2000, 5–45 ; Proc. Steklov Inst. Math., 231 (2000), 1–41