1. Koops, B.-J., Leenes, R.: Privacy regulation cannot be hardcoded. A critical comment on the ‘privacy by design’ provision in data-protection law. Int. Rev. Law Comput. Technol. 28, 151–171 (2014)
2. Schartum, D.W.: Making privacy by design operative. Int. J. Law Inf. Technol. 24, 151–175 (2016)
3. International Conference of Data Protection and Privacy Commissioners: Joint Proposal for a Draft of International Standards on the Protection of Privacy with regard to the processing of Personal Data (The Madrid Resolution). 30th International Conference of Data Protection and Privacy Commissioners, Madrid (2009). https://icdppc.org/wp-content/uploads/2015/02/The-Madrid-Resolution.pdf
4. Cavoukian, A.: Privacy by Design…Take the Challenge (2010). http://www.privacybydesign.ca/content/uploads/2010/03/PrivacybyDesignBook.pdf
5. Wuyts, K., Scandariato, R., Joosen, W.: LINDDUN: a privacy threat analysis framework. https://people.cs.kuleuven.be/~kim.wuyts/LINDDUN/LINDDUN.pdf