This Article suggests that Article 5 imposes a wide variety of important duties on Member States, and that its implications extend much further than is generally realized.
John Temple Lang,
Article 5 of the EEC Treaty: The Emergence of Constitutional Principles in the Case Law of the Court of Justice,
10 Fordham Int'l L.J. 503
Available at: http://ir.lawnet.fordham.edu/ilj/vol10/iss3/5