1. American Law Institute (1985) Model Penal Code and commentaries: official draft and revised commentaries
2. Ashworth AJ (2009) Principles of criminal law, 6th edn. Oxford University Press, Oxford
3. Ashworth AJ (2011) United Kingdom. In: Heller KJ, Dubber MD (eds) The handbook of comparative criminal law. Stanford University Press, Stanford, California, p 531
4. Bailey PG (2009) Law Reform Commission. http://www.thecanadianencyclopedia.com/en/article/law-reform-commission-of-canada/
5. Bayley D (2011) Six degrees of separation: Canadian accessory liability in Afghan war crimes. Dalhousie J Legal Stud 20:43–70