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The Europa website provides an overview of the Treaty of Nice:
https://www.europarl.europa.eu/about-parliament/en/in-the-past/the-parliament-and-the-treaties/treaty-of-nice
The Presidency Conclusions of the Lisbon European Council of March 2000 set out the blueprint for the Union's 'Lisbon Agenda' on economic growth and competitiveness:
www.consilium.europa.eu/ueDocs/cms_Data/docs/pressData/en/ec/00100-r1.en0.htm
The EU’s Lisbon Strategy website has been archived since early 2010. Its contents, however, are still available for consultation:
http://ec.europa.eu/archives/growthandjobs_2009/
Facing the Challenge: The Lisbon Strategy for Growth and Employment (2004), a report from the High Level Group, chaired by Wim Kok, is an independent review which formed part of the mid-term review of the Lisbon Strategy. The report is available here:
The text of the 2001 Laeken Declaration on the Future of Europe can be found at the following link (see Annex I of the Laeken European Council Presidency Conclusion, 14 and 15 December 2001):
https://www.cvce.eu/content/publication/2002/9/26/a76801d5-4bf0-4483-9000-e6df94b07a55/publishable_en.pdf
The European Convention (Convention on the Future of Europe) completed its work on 10 July 2003, but the website can still be consulted. The text of the Draft Treaty Establishing a Constitution for Europe, which was compiled by the European Convention, can also be accessed via this link:
http://european-convention.europa.eu/EN/bienvenue/bienvenue2352.html?lang=EN
A summary of the Treaty Establishing a Constitution for Europe is available at the following link:
https://www.europarl.europa.eu/about-parliament/en/in-the-past/the-parliament-and-the-treaties/draft-treaty-establishing-a-constitution-for-europe
The Lisbon Treaty amends the EU's two core treaties, the Treaty on European Union and the Treaty establishing the European Community. The latter is renamed the Treaty on the Functioning of the European Union. In addition, several Protocols and Declarations are attached to the Treaty. A consolidated text of the two core Treaties, integrating the modifications which the Treaty of Lisbon lists in its articles, is also available at the following webpage.
https://eur-lex.europa.eu/legal-content/EN/ALL/?uri=OJ:C:2007:306:TOC