1. Article 19 (2020) Spain: speech related offences of the Penal Code. https://www.article19.org/wp-content/uploads/2020/03/Spain-Penal-Code-analysis-March-2020-Final.pdf. Accessed 19 Jan 2023
2. Ashworth A (2003) Principles of criminal law, 4th edn. Oxford University Press, Oxford
3. Ashworth A (2009) Principles of criminal law, 6th edn. Oxford University Press, Oxford
4. Bates ES (2011) Terrorism and international law: accountability, remedies, and reform: a report of the IBA task force on terrorism. Oxford University Press, Oxford
5. Bohlander M (2009) Principles of German criminal law. Hart Publishing, Oxford and Portland, Oregon