Casolari, F. (2012). The principle of loyal cooperation: A ‘master key’ for EU external representation? (CLEER Working Papers, 2012/5).
Constantinescu, V. (1987). L’article 5 CEE, de la bonne foi à la loyauté communautaire. In F. Capotorti et al. (Eds.), Du droit international au droit de l’intégration. Liber Amicorum Pierre Pescatore (pp. 97–114). Baden-Baden: Nomos.
Council of the European Union. (2005). Procedural framework for the adoption of Community or common positions for IMO related issues and rules governing their expression in the IMO, SEC (2005) 449, as amended after discussions in the Shipping Working Party of the Council, doc. 11851/05.
Cremona, M. (2008). Defending the Community interest: The duties of cooperation and compliance. In M. Cremona & B. De Witte (Eds.), EU foreign relations law. Constitutional fundamentals (pp. 125–169). Oxford: Hart Publishing.
Cremona, M. (2009). Extending the reach of the AETR principle: Comment on Commission v Greece (C-45/07). European Law Review, 34, 754–768.
Cremona, M. (2011). Member States as trustees of the Union interest: Participating in international agreements on behalf of the European Union. In A. Arnull et al. (Eds.), Constitutional order of states. Essays in EU law in honour of Alan Dashwood (pp. 435–457). Oxford: Hart Publishing.
Czuczai, J. (2017). The principle of solidarity in the EU legal order – some practical examples after Lisbon. In J. Czuczai & F. Naert (Eds.), The EU as a global actor – bridging legal theory and practice (pp. 145–165). Leiden: Brill-Nijhoff.
De Baere, G. (2008). Constitutional principles of EU external relations. Oxford: Oxford University Press.
De Baere, G. (2011). O, where is faith? O, where is loyalty? Some reflections on the duty of loyal cooperation and the Union’s external environmental competences in the light of the PFOS case. European Law Review, 36, 405–419.
Delgado Casteleiro, A., & Larik, J. (2011). The duty to remain silent: Limitless loyalty in EU external relations? European Law Review, 36, 524–541.
Govaere, I. (2015). Novel issues pertaining to EU Member States’ membership of other international organisations: The OIV case. In I. Govaere, E. Lannon, P. Van Elsuwege, & S. Adam (Eds.), The European Union in the world. Essays in honour of Marc Maresceau (pp. 225–243). Leiden: Brill-Nijhoff.
Hillion, C. (2009). Mixity and coherence in EU external relations: The significance of the duty of cooperation (CLEER Working Papers, 2009/2).
Hillion, C. (2012). Cohérence et action extérieure de l’Union. In E. Neframi (Ed.), Objectifs et compétences de l’Union européenne (pp. 229–261). Brussels: Éditions Bruylant/Larcier.
Hillion, C. (2014). A powerless court? The European Court of Justice and the Common Foreign and Security Policy. In M. Cremona & A. Thies (Eds.), The European Court of Justice and external relations law: Constitutional challenges (pp. 47–70). Oxford: Hart Publishing.
Hillion, C., & Wessel, R. (2008). Restraining external competences of the Member States under CFSP. In M. Cremona & B. De Witte (Eds.), EU foreign relations law. Constitutional fundamentals (pp. 79–121). Oxford: Hart Publishing.
Klamert, M. (2014). The principle of loyalty in EU law. Oxford: Oxford University Press.
Koutrakos, P. (2008). Primary law and policy in EU external relations – moving away from the big picture. European Law Review, 33, 666–686.
Lenaerts, K., & Corthaut, T. (2006). Of birds and hedges: The role of primacy in invoking norms of EU law. European Law Review, 31, 287–315.
Neframi, E. (2010). The duty of loyalty: Rethinking its scope through its application in the field of EU external relations. Common Market Law Review, 47, 323–359.
Reuter, K. (2013). Competence creep via the duty of loyalty? Article 4(3) TEU and its changing role in EU external relations. PhD thesis, European University Institute, Florence.
Schütze, R. (2014). Foreign affairs and the EU constitution. Selected essays. Cambridge: Cambridge University Press.
Tournaye, C. (2014). International organisations soon blocked by EU’s external powers?. Retrieved November 17, 2017, from http://voelkerrechtsblog.com/2014/10/21/international-organizations-soon-blocked-by-eus-external-powers/
Van der Loo, G., & Wessel, R. A. (2017). The non-ratification of mixed agreements: Legal consequences and solutions. Common Market Law Review, 54, 735–770.
Van Elsuwege, P. (2011). Annotation of Case C-246/07. American Journal of International Law, 105, 307–313.
Van Elsuwege P. Upholding the rule of law in the common foreign and security policy: H vs. Council Common Market Law Review. 2017;54:841–58.