1. C. Anatharaman-Delaroche, Approximation properties of coset spaces and their operator algebras, The Varied Landscape of Operator Theory: Conference Proceedings, Timioara, July 27, 2012, Theta, Bucharest, 2014, pp. 23–45.
2. L. Bartholdi, R. I. Grigorchuk, and Z. Sunik, Branch groups, Handbook of Algebra, vol. 3, Elsevier, North-Holland, 2003, pp. 989–1112.
3. M. Beiglböck, V. Bergelson, and A. Fish, Sumset phenomenon in countable amenable groups, Adv. Math. 223 No. 2 (2010), 416–432.
4. M. Bekka, M, P. de la Harpe, Représentations d’un groupe faiblement équivalentes á la représentation réguliére, Bull. Soc. Math. France 122 (1994), 333–342.
5. B. Bekka, P. de la Harpe, and A. Valette, Kazhdan’s property (T), Cambridge University Press, Cambridge, 2008.