1. Grigorchuk, R.I.: Just infinite branch groups. New horizons in pro- $$p$$ p groups. Progr. Math. 184, 121–179 (2000). (Birkhäuser, Boston)
2. Wilson, J.S.: Groups with every proper quotient finite. Proc. Cambridge Philos. Soc. 69, 373–391 (1971)
3. Grigorchuk, R., Musat, M., Rørdam, M.: Just-infinite $$C^*$$ C ∗ -algebras. Preprint (2016). arxiv:1604.08774
4. Grigorchuk, R.I.: On Burnside’s problem on periodic groups. Funktsional. Anal. i Prilozhen. 14, 53–54 (1980). (Russian)
5. Grigorchuk, R.I.: Degrees of growth of finitely generated groups and the theory of invariant means. Izv. Akad. Nauk SSSR Ser. Mat. 48, 939–985 (1984). (Russian)