- Commentaries on Article 32 TFEU on Principles Guiding the Commission in the Exercise of its Functions relating to the Customs UnionHoffmann, Thomas; Kerikmäe, TanelSmit & Herzog on The Law of the European Union2016 / p. 32-1-32-4
- Unified code of ethical conduct for company lawers - a possible way forward on the road towards harmony for in-house counselPopov, AleksandrCompany lawyers : independent by design2014 / p. 173-177