1. Bitney, K., Drake, E., Grice, J., Hirsch, M. & Lee, S. (2017). The effectiveness of re-entry programs for incarcerated persons: findings for the Washington Statewide Re-entry Council. Document Number 17-05-1901. Washington State Institute for Public Policy.
2. Braithwaite, J. (1989). Crime. Shame and reintegration. Cambridge.
3. Brudney, J. L., & Meijs, L. C. (2009). It ain’t natural: Toward a new (natural) resource conceptualization for volunteer management. Nonprofit and Voluntary Sector Quarterly, 38(4), 564–581. https://doi.org/10.1177/0899764009333828
4. Chouinard, J., & Riddick, C. (2015). An evaluation of the Circles of Support and Accountability demonstration project: Final report. Ottawa: Church Council on Justice and Corrections.
5. Circles, U. K. (2018). Youth Circles operating model. Circles UK.