Ferreira-Pereira, L. C. “Per Aspera Ad Astra: A Europa Da Segurança E Defesa De Bruxelas a Nice: Per Aspera Ad Astra: The Europe of Security and Defense from Brussels to Nice”. Perspectivas - Journal of Political Science, vol. 1, May 2005, pp. 129-44, https://www.perspectivasjournal.com/index.php/perspectivas/article/view/420.