1. Ashworth, A., & von Hirsch, A. (2005). Proportionate sentencing: Exploring the principles. Oxford: Oxford University Press.
2. Brownlee, K. (2004). Features of a paradigm case of civil disobedience. Res Publica, 10(4), 337–351.
3. Duff, A. (1998). Desert and penance. In A. Ashworth & A. von Hirsch (Eds.), Principled sentencing: Theory and policy. Oxford: Hart Publishing.
4. Duff, A. (2003). Punishment. In H. LaFollette (Ed.), Oxford handbook of practical ethics. Oxford: Oxford University Press.
5. Duff, A. (2001). Punishment, communication, and community. Oxford: Oxford University Press.