1. R. J. Archbold and J. S. Spielberg,
Topologically free actions and ideals in discrete
C
*
{\mathrm{C}^{*}}
-dynamical systems,
Proc. Edinb. Math. Soc. (2) 37 (1994), no. 1, 119–124.
2. P. de la Harpe and J.-P. Préaux,
C
*
{\mathrm{C}^{*}}
-simple groups: Amalgamated free products, HNN extensions, and fundamental groups of 3-manifolds,
J. Topol. Anal. 3 (2011), no. 4, 451–489.
3. M. Elder and G. Willis,
Totally disconnected groups from Baumslag–Solitar groups,
Infinite group theory. From the past to the future,
World Scientific, Singapur (2018), 51–79.
4. S. Raum,
C
*
{\mathrm{C}^{*}}
-simplicity (after Breuillard, Haagerup, Kalantar, Kennedy and Ozawa),
Séminaire Bourbaki, Exposé 1158, Astérisque 422 (2020).
5. S. Raum,
C
*
{\mathrm{C}^{*}}
-simplicity of locally compact Powers groups,
J. reine angew. Math. 748 (2019), 173–205.